0
Your cart

Your cart is empty

Browse All Departments
Price
  • R100 - R250 (59)
  • R250 - R500 (364)
  • R500+ (14,544)
  • -
Status
Format
Author / Contributor
Publisher

Books > Computing & IT > Applications of computing > Databases

Energy Efficiency in Data Centers and Clouds, Volume 100 (Hardcover): Suyel Namasudra, Hamid Sarbazi-Azad Energy Efficiency in Data Centers and Clouds, Volume 100 (Hardcover)
Suyel Namasudra, Hamid Sarbazi-Azad
R4,212 Discovery Miles 42 120 Ships in 10 - 15 working days

Advances in Computers carries on a tradition of excellence, presenting detailed coverage of innovations in computer hardware, software, theory, design, and applications. The book provides contributors with a medium in which they can explore their subjects in greater depth and breadth than journal articles typically allow. The articles included in this book will become standard references, with lasting value in this rapidly expanding field.

Cloud-Based Big Data Analytics in Vehicular Ad-Hoc Networks (Hardcover): Ram Shringar Rao, Nanhay Singh, Omprakash Kaiwartya,... Cloud-Based Big Data Analytics in Vehicular Ad-Hoc Networks (Hardcover)
Ram Shringar Rao, Nanhay Singh, Omprakash Kaiwartya, Sanjoy Das
R6,677 Discovery Miles 66 770 Ships in 18 - 22 working days

Vehicular traffic congestion and accidents remain universal issues in today's world. Due to the continued growth in the use of vehicles, optimizing traffic management operations is an immense challenge. To reduce the number of traffic accidents, improve the performance of transportation systems, enhance road safety, and protect the environment, vehicular ad-hoc networks have been introduced. Current developments in wireless communication, computing paradigms, big data, and cloud computing enable the enhancement of these networks, equipped with wireless communication capabilities and high-performance processing tools. Cloud-Based Big Data Analytics in Vehicular Ad-Hoc Networks is a pivotal reference source that provides vital research on cloud and data analytic applications in intelligent transportation systems. While highlighting topics such as location routing, accident detection, and data warehousing, this publication addresses future challenges in vehicular ad-hoc networks and presents viable solutions. This book is ideally designed for researchers, computer scientists, engineers, automobile industry professionals, IT practitioners, academicians, and students seeking current research on cloud computing models in vehicular networks.

The Visual Imperative - Creating a Visual Culture of Data Discovery (Paperback): Lindy Ryan The Visual Imperative - Creating a Visual Culture of Data Discovery (Paperback)
Lindy Ryan
R1,040 Discovery Miles 10 400 Ships in 10 - 15 working days

Data is powerful. It separates leaders from laggards and it drives business disruption, transformation, and reinvention. Today's most progressive companies are using the power of data to propel their industries into new areas of innovation, specialization, and optimization. The horsepower of new tools and technologies have provided more opportunities than ever to harness, integrate, and interact with massive amounts of disparate data for business insights and value - something that will only continue in the era of the Internet of Things. And, as a new breed of tech-savvy and digitally native knowledge workers rise to the ranks of data scientist and visual analyst, the needs and demands of the people working with data are changing, too. The world of data is changing fast. And, it's becoming more visual. Visual insights are becoming increasingly dominant in information management, and with the reinvigorated role of data visualization, this imperative is a driving force to creating a visual culture of data discovery. The traditional standards of data visualizations are making way for richer, more robust and more advanced visualizations and new ways of seeing and interacting with data. However, while data visualization is a critical tool to exploring and understanding bigger and more diverse and dynamic data, by understanding and embracing our human hardwiring for visual communication and storytelling and properly incorporating key design principles and evolving best practices, we take the next step forward to transform data visualizations from tools into unique visual information assets.

Metaverse - A Beginner's Guide to Investing and Making Passive Income in Virtual Lands, Nft, Blockchain and Cryptocurrency... Metaverse - A Beginner's Guide to Investing and Making Passive Income in Virtual Lands, Nft, Blockchain and Cryptocurrency + 10 Best Defi Projects and Strategies to Maximize Your Profits (Hardcover)
Harper Fraley
R778 R682 Discovery Miles 6 820 Save R96 (12%) Ships in 18 - 22 working days
Formative Assessment, Learning Data Analytics and Gamification - In ICT Education (Paperback): Santi Caballe, Robert Clariso Formative Assessment, Learning Data Analytics and Gamification - In ICT Education (Paperback)
Santi Caballe, Robert Clariso
R2,490 R2,352 Discovery Miles 23 520 Save R138 (6%) Ships in 10 - 15 working days

Formative Assessment, Learning Data Analytics and Gamification: An ICT Education discusses the challenges associated with assessing student progress given the explosion of e-learning environments, such as MOOCs and online courses that incorporate activities such as design and modeling. This book shows educators how to effectively garner intelligent data from online educational environments that combine assessment and gamification. This data, when used effectively, can have a positive impact on learning environments and be used for building learner profiles, community building, and as a tactic to create a collaborative team. Using numerous illustrative examples and theoretical and practical results, leading international experts discuss application of automatic techniques for e-assessment of learning activities, methods to collect, analyze, and correctly visualize learning data in educational environments, applications, benefits and challenges of using gamification techniques in academic contexts, and solutions and strategies for increasing student participation and performance.

Structured Search for Big Data - From Keywords to Key-objects (Paperback): Mikhail Gilula Structured Search for Big Data - From Keywords to Key-objects (Paperback)
Mikhail Gilula
R680 Discovery Miles 6 800 Ships in 10 - 15 working days

The WWW era made billions of people dramatically dependent on the progress of data technologies, out of which Internet search and Big Data are arguably the most notable. Structured Search paradigm connects them via a fundamental concept of key-objects evolving out of keywords as the units of search. The key-object data model and KeySQL revamp the data independence principle making it applicable for Big Data and complement NoSQL with full-blown structured querying functionality. The ultimate goal is extracting Big Information from the Big Data. As a Big Data Consultant, Mikhail Gilula combines academic background with 20 years of industry experience in the database and data warehousing technologies working as a Sr. Data Architect for Teradata, Alcatel-Lucent, and PayPal, among others. He has authored three books, including The Set Model for Database and Information Systems and holds four US Patents in Structured Search and Data Integration.

Industry Use Cases on Blockchain Technology Applications in IoT and the Financial Sector (Hardcover): Zaigham Mahmood Industry Use Cases on Blockchain Technology Applications in IoT and the Financial Sector (Hardcover)
Zaigham Mahmood
R6,713 Discovery Miles 67 130 Ships in 18 - 22 working days

Blockchain technology presents numerous advantages that include increased transparency, reduced transaction costs, faster transaction settlement, automation of information, increased traceability, improved customer experience, improved digital identity, better cyber security, and user-controlled networks. These potential applications are widespread and diverse including funds transfer, smart contracts, e-voting, efficient supply chain, and more in nearly every sector of society including finance, healthcare, law, trade, real estate, and other important areas. However, there are challenges and limitations that exist such as high energy consumption, limited scalability, complexity, security, network size, lack of regulations, and other critical issues. Nevertheless, blockchain is an attractive technology and has much to offer to the modern-day industry. Industry Use Cases on Blockchain Technology Applications in IoT and the Financial Sector investigates blockchain technology's adoption and effectiveness in multiple industries and for the internet of things (IoT)-based applications, presents use cases from industrial and financial sectors as well as from other transaction-based services, and fills a gap in this respect by extending the existing body of knowledge in the suggested field. While highlighting topics such as cybersecurity, use cases, and models for blockchain implementation, this book is ideal for business managers, financial accountants, practitioners, researchers, academicians, and students interested in blockchain technology's role and implementation in IoT and the financial sector.

Enhancing Academic Research With Knowledge Management Principles (Hardcover): Dhananjay Subhashchandra Deshpande, Narayan... Enhancing Academic Research With Knowledge Management Principles (Hardcover)
Dhananjay Subhashchandra Deshpande, Narayan Bhosale, Rajesh Jagannathrao Londhe
R4,999 Discovery Miles 49 990 Ships in 18 - 22 working days

The effective application of knowledge management principles has proven to be beneficial for modern organizations. When utilized in the academic community, these frameworks can enhance the value and quality of research initiatives. Enhancing Academic Research With Knowledge Management Principles is a pivotal reference source for the latest research on implementing theoretical frameworks of information management in the context of academia and universities. Featuring extensive coverage on relevant areas such as data mining, organizational and academic culture, this publication is an ideal resource for researchers, academics, practitioners, professionals, and students.

Mesh - Eine Reise Durch Die Diskrete Geometrie (English, German, Book): Beau Janzen, Konrad Polthier Mesh - Eine Reise Durch Die Diskrete Geometrie (English, German, Book)
Beau Janzen, Konrad Polthier
R188 Discovery Miles 1 880 Ships in 10 - 15 working days

MESH ist ein mathematisches Video ber vielfl chige Netzwerke und ihre Rolle in der Geometrie, der Numerik und der Computergraphik. Der unter Anwendung der neuesten Technologie vollst ndig computergenierte Film spannt einen Bogen von der antiken griechischen Mathematik zum Gebiet der heutigen geometrischen Modellierung. MESH hat zahlreiche wissenschaftliche Preise weltweit gewonnen. Die Autoren sind Konrad Polthier, ein Professor der Mathematik, und Beau Janzen, ein professioneller Filmdirektor.

Der Film ist ein ausgezeichnetes Lehrmittel f r Kurse in Geometrie, Visualisierung, wissenschaftlichem Rechnen und geometrischer Modellierung an Universit ten, Zentren f r wissenschaftliches Rechnen, kann jedoch auch an Schulen genutzt werden.

Handbook of Research on Engineering, Business, and Healthcare Applications of Data Science and Analytics (Hardcover): Bhushan... Handbook of Research on Engineering, Business, and Healthcare Applications of Data Science and Analytics (Hardcover)
Bhushan Patil, Manisha Vohra
R9,481 Discovery Miles 94 810 Ships in 18 - 22 working days

Analyzing data sets has continued to be an invaluable application for numerous industries. By combining different algorithms, technologies, and systems used to extract information from data and solve complex problems, various sectors have reached new heights and have changed our world for the better. The Handbook of Research on Engineering, Business, and Healthcare Applications of Data Science and Analytics is a collection of innovative research on the methods and applications of data analytics. While highlighting topics including artificial intelligence, data security, and information systems, this book is ideally designed for researchers, data analysts, data scientists, healthcare administrators, executives, managers, engineers, IT consultants, academicians, and students interested in the potential of data application technologies.

Lean Startup - How to Apply the Lean Startup Methodology to Innovate, Accelerate, and Create Successful Businesses (Lean Guides... Lean Startup - How to Apply the Lean Startup Methodology to Innovate, Accelerate, and Create Successful Businesses (Lean Guides with Scrum, Sprint, Kanban, DSDM, XP & Crystal) (Hardcover)
Greg Caldwell
R585 R529 Discovery Miles 5 290 Save R56 (10%) Ships in 18 - 22 working days
Intelligent Security Systems - How Artificial Intelligence, Machine Learning and Data Science Work For and Against Computer... Intelligent Security Systems - How Artificial Intelligence, Machine Learning and Data Science Work For and Against Computer Security (Hardcover)
L. Reznik
R2,554 Discovery Miles 25 540 Ships in 10 - 15 working days

INTELLIGENT SECURITY SYSTEMS Dramatically improve your cybersecurity using AI and machine learning In Intelligent Security Systems, distinguished professor and computer scientist Dr. Leon Reznik delivers an expert synthesis of artificial intelligence, machine learning and data science techniques, applied to computer security to assist readers in hardening their computer systems against threats. Emphasizing practical and actionable strategies that can be immediately implemented by industry professionals and computer device's owners, the author explains how to install and harden firewalls, intrusion detection systems, attack recognition tools, and malware protection systems. He also explains how to recognize and counter common hacking activities. This book bridges the gap between cybersecurity education and new data science programs, discussing how cutting-edge artificial intelligence and machine learning techniques can work for and against cybersecurity efforts. Intelligent Security Systems includes supplementary resources on an author-hosted website, such as classroom presentation slides, sample review, test and exam questions, and practice exercises to make the material contained practical and useful. The book also offers: A thorough introduction to computer security, artificial intelligence, and machine learning, including basic definitions and concepts like threats, vulnerabilities, risks, attacks, protection, and tools An exploration of firewall design and implementation, including firewall types and models, typical designs and configurations, and their limitations and problems Discussions of intrusion detection systems (IDS), including architecture topologies, components, and operational ranges, classification approaches, and machine learning techniques in IDS design A treatment of malware and vulnerabilities detection and protection, including malware classes, history, and development trends Perfect for undergraduate and graduate students in computer security, computer science and engineering, Intelligent Security Systems will also earn a place in the libraries of students and educators in information technology and data science, as well as professionals working in those fields.

Applying Data Science and Learning Analytics Throughout a Learner's Lifespan (Hardcover): Goran Trajkovski, Marylee... Applying Data Science and Learning Analytics Throughout a Learner's Lifespan (Hardcover)
Goran Trajkovski, Marylee Demeter, Heather Hayes
R5,333 Discovery Miles 53 330 Ships in 18 - 22 working days

Research in the domains of learning analytics and educational data mining has prototyped an approach where methodologies from data science and machine learning are used to gain insights into the learning process by using large amounts of data. As many training and academic institutions are maturing in their data-driven decision making, useful, scalable, and interesting trends are emerging. Organizations can benefit from sharing information on those efforts. Applying Data Science and Learning Analytics Throughout a Learner's Lifespan examines novel and emerging applications of data science and sister disciplines for gaining insights from data to inform interventions into learners' journeys and interactions with academic institutions. Data is collected at various times and places throughout a learner's lifecycle, and the learners and the institution should benefit from the insights and knowledge gained from this data. Covering topics such as learning analytics dashboards, text network analysis, and employment recruitment, this book is an indispensable resource for educators, computer scientists, faculty of higher education, government officials, educational administration, students of higher education, pre-service teachers, business professionals, researchers, and academicians.

Social Sensing - Building Reliable Systems on Unreliable Data (Paperback): Dong Wang, Tarek Abdelzaher, Lance Kaplan Social Sensing - Building Reliable Systems on Unreliable Data (Paperback)
Dong Wang, Tarek Abdelzaher, Lance Kaplan
R1,814 Discovery Miles 18 140 Ships in 10 - 15 working days

Increasingly, human beings are sensors engaging directly with the mobile Internet. Individuals can now share real-time experiences at an unprecedented scale. Social Sensing: Building Reliable Systems on Unreliable Data looks at recent advances in the emerging field of social sensing, emphasizing the key problem faced by application designers: how to extract reliable information from data collected from largely unknown and possibly unreliable sources. The book explains how a myriad of societal applications can be derived from this massive amount of data collected and shared by average individuals. The title offers theoretical foundations to support emerging data-driven cyber-physical applications and touches on key issues such as privacy. The authors present solutions based on recent research and novel ideas that leverage techniques from cyber-physical systems, sensor networks, machine learning, data mining, and information fusion.

Next-Generation Information Retrieval and Knowledge Resources Management (Hardcover): Joan Lu Next-Generation Information Retrieval and Knowledge Resources Management (Hardcover)
Joan Lu
R6,177 Discovery Miles 61 770 Ships in 18 - 22 working days

Across numerous industries in modern society, there is a constant need to gather precise and relevant data efficiently and quickly. As such, it is imperative to research new methods and approaches to increase productivity in these areas. Next-Generation Information Retrieval and Knowledge Resources Management is a key source on the latest advancements in multidisciplinary research methods and applications and examines effective techniques for managing and utilizing information resources. Featuring extensive coverage across a range of relevant perspectives and topics, such as knowledge discovery, spatial indexing, and data mining, this book is ideally designed for researchers, graduate students, academics, and industry professionals seeking ways to optimize knowledge management processes.

Corporate Cybersecurity - Identifying Risks and the Bug Bounty Program (Hardcover): J. Jackson Corporate Cybersecurity - Identifying Risks and the Bug Bounty Program (Hardcover)
J. Jackson
R2,573 Discovery Miles 25 730 Ships in 18 - 22 working days

CORPORATE CYBERSECURITY An insider's guide showing companies how to spot and remedy vulnerabilities in their security programs A bug bounty program is offered by organizations for people to receive recognition and compensation for reporting bugs, especially those pertaining to security exploits and vulnerabilities. Corporate Cybersecurity gives cyber and application security engineers (who may have little or no experience with a bounty program) a hands-on guide for creating or managing an effective bug bounty program. Written by a cyber security expert, the book is filled with the information, guidelines, and tools that engineers can adopt to sharpen their skills and become knowledgeable in researching, configuring, and managing bug bounty programs. This book addresses the technical aspect of tooling and managing a bug bounty program and discusses common issues that engineers may run into on a daily basis. The author includes information on the often-overlooked communication and follow-through approaches of effective management. Corporate Cybersecurity provides a much-needed resource on how companies identify and solve weaknesses in their security program. This important book: Contains a much-needed guide aimed at cyber and application security engineers Presents a unique defensive guide for understanding and resolving security vulnerabilities Encourages research, configuring, and managing programs from the corporate perspective Topics covered include bug bounty overview; program set-up; vulnerability reports and disclosure; development and application Security Collaboration; understanding safe harbor and SLA Written for professionals working in the application and cyber security arena, Corporate Cybersecurity offers a comprehensive resource for building and maintaining an effective bug bounty program.

How Libraries Should Manage Data - Practical Guidance On How With Minimum Resources to Get the Best From Your Data (Paperback):... How Libraries Should Manage Data - Practical Guidance On How With Minimum Resources to Get the Best From Your Data (Paperback)
Brian Cox
R1,446 Discovery Miles 14 460 Ships in 10 - 15 working days

Have you ever looked at your Library's key performance indicators and said to yourself "so what!"? Have you found yourself making decisions in a void due to the lack of useful and easily accessible operational data? Have you ever worried that you are being left behind with the emergence of data analytics? Do you feel there are important stories in your operational data that need to be told, but you have no idea how to find these stories? If you answered yes to any of these questions, then this book is for you. How Libraries Should Manage Data provides detailed instructions on how to transform your operational data from a fog of disconnected, unreliable, and inaccessible information - into an exemplar of best practice data management. Like the human brain, most people are only using a very small fraction of the true potential of Excel. Learn how to tap into a greater proportion of Excel's hidden power, and in the process transform your operational data into actionable business intelligence.

Modern Database Management (Hardcover): Mitchell Penn Modern Database Management (Hardcover)
Mitchell Penn
R2,987 R2,715 Discovery Miles 27 150 Save R272 (9%) Ships in 18 - 22 working days
Innovative Research and Applications in Next-Generation High Performance Computing (Hardcover): Qusay F. Hassan Innovative Research and Applications in Next-Generation High Performance Computing (Hardcover)
Qusay F. Hassan
R5,258 Discovery Miles 52 580 Ships in 18 - 22 working days

High-performance computing (HPC) describes the use of connected computing units to perform complex tasks. It relies on parallelization techniques and algorithms to synchronize these disparate units in order to perform faster than a single processor could, alone. Used in industries from medicine and research to military and higher education, this method of computing allows for users to complete complex data-intensive tasks. This field has undergone many changes over the past decade, and will continue to grow in popularity in the coming years. Innovative Research Applications in Next-Generation High Performance Computing aims to address the future challenges, advances, and applications of HPC and related technologies. As the need for such processors increases, so does the importance of developing new ways to optimize the performance of these supercomputers. This timely publication provides comprehensive information for researchers, students in ICT, program developers, military and government organizations, and business professionals.

Optimizing the Display and Interpretation of Data (Paperback): Robert Warner Optimizing the Display and Interpretation of Data (Paperback)
Robert Warner
R834 Discovery Miles 8 340 Ships in 10 - 15 working days

"What information do these data reveal?" "Is the information correct?" "How can I make the best use of the information?" The widespread use of computers and our reliance on the data generated by them have made these questions increasingly common and important. Computerized data may be in either digital or analog form and may be relevant to a wide range of applications that include medical monitoring and diagnosis, scientific research, engineering, quality control, seismology, meteorology, political and economic analysis and business and personal financial applications. The sources of the data may be databases that have been developed for specific purposes or may be of more general interest and include those that are accessible on the Internet. In addition, the data may represent either single or multiple parameters. Examining data in its initial form is often very laborious and also makes it possible to "miss the forest for the trees" by failing to notice patterns in the data that are not readily apparent. To address these problems, this monograph describes several accurate and efficient methods for displaying, reviewing and analyzing digital and analog data. The methods may be used either singly or in various combinations to maximize the value of the data to those for whom it is relevant. None of the methods requires special devices and each can be used on common platforms such as personal computers, tablets and smart phones. Also, each of the methods can be easily employed utilizing widely available off-the-shelf software. Using the methods does not require special expertise in computer science or technology, graphical design or statistical analysis. The usefulness and accuracy of all the described methods of data display, review and interpretation have been confirmed in multiple carefully performed studies using independent, objective endpoints. These studies and their results are described in the monograph. Because of their ease of use, accuracy and efficiency, the methods for displaying, reviewing and analyzing data described in this monograph can be highly useful to all who must work with computerized information and make decisions based upon it.

Entity-Oriented Search (Hardcover): Krisztian Balog Entity-Oriented Search (Hardcover)
Krisztian Balog
R1,549 Discovery Miles 15 490 Ships in 18 - 22 working days
Collaborative Filtering Using Data Mining and Analysis (Hardcover): Vishal Bhatnagar Collaborative Filtering Using Data Mining and Analysis (Hardcover)
Vishal Bhatnagar
R4,949 Discovery Miles 49 490 Ships in 18 - 22 working days

Internet usage has become a normal and essential aspect of everyday life. Due to the immense amount of information available on the web, it has become obligatory to find ways to sift through and categorize the overload of data while removing redundant material. Collaborative Filtering Using Data Mining and Analysis evaluates the latest patterns and trending topics in the utilization of data mining tools and filtering practices. Featuring emergent research and optimization techniques in the areas of opinion mining, text mining, and sentiment analysis, as well as their various applications, this book is an essential reference source for researchers and engineers interested in collaborative filtering.

Online Survey Design and Data Analytics - Emerging Research and Opportunities (Hardcover): Shalin Hai-Jew Online Survey Design and Data Analytics - Emerging Research and Opportunities (Hardcover)
Shalin Hai-Jew
R5,304 Discovery Miles 53 040 Ships in 18 - 22 working days

Online survey research suites offer a vast array of capabilities, supporting the presentation of virtually every type of digital data - text, imagery, audio, video, and multimedia forms. With some researcher sophistication, these online survey research suites can enable a wide range of quantitative, qualitative, and mixed methods research. Online Survey Design and Data Analytics: Emerging Research and Opportunities is a critical scholarly resource that explores the utilization of online platforms for setting up surveys to achieve a specific result, eliciting data in in-depth ways and applying creative analytics methods to online survey data. Highlighting topics such as coding, education-based analysis, and online Delphi studies, this publication is ideal for researchers, professionals, academicians, data analysts, IT consultants, and students.

Design Mind for Data Visualization - Learn to Use Information and Graphic Design Principles to Produce Engaging Data Stories... Design Mind for Data Visualization - Learn to Use Information and Graphic Design Principles to Produce Engaging Data Stories Your Audience Can't Ignore (Hardcover)
J. Storm
R1,126 Discovery Miles 11 260 Ships in 18 - 22 working days
Information Systems: A Digital World (Hardcover): Brian Jackson Information Systems: A Digital World (Hardcover)
Brian Jackson
R2,818 R2,564 Discovery Miles 25 640 Save R254 (9%) Ships in 18 - 22 working days
Free Delivery
Pinterest Twitter Facebook Google+
You may like...
Amazon Transcribe Developer Guide
Documentation Team Hardcover R881 Discovery Miles 8 810
Cognitive Social Mining Applications in…
Anandakumar Haldorai, Arulmurugan Ramu Hardcover R4,855 Discovery Miles 48 550
Signal Processing and Machine Learning…
Toshihisa Tanaka, Mahnaz Arvaneh Hardcover R3,321 R2,999 Discovery Miles 29 990
Grammatical Evolution - Evolutionary…
Michael O'Neill, Conor Ryan Hardcover R4,094 Discovery Miles 40 940
Applications of Machine Learning and…
Ran Yan, Shuaian Wang Hardcover R3,111 R2,813 Discovery Miles 28 130
Tree-Based Machine Learning Methods in…
Sharad Saxena Hardcover R2,044 Discovery Miles 20 440
Roman's Data Science How to monetize…
Roman Zykov Hardcover R1,091 R924 Discovery Miles 9 240
ReRAM-based Machine Learning
Hao Yu, Leibin Ni, … Hardcover R3,097 R2,800 Discovery Miles 28 000
Learning and Generalisation - With…
Mathukumalli Vidyasagar Hardcover R4,963 Discovery Miles 49 630
Learning and Coordination - Enhancing…
S. H. Kim Hardcover R4,023 Discovery Miles 40 230

 

Partners