Following books and websites have been consulted for this experiment.
You are suggested to go through them for further details.

Bibliography

1. Software Engineering: A Practioner's Approach, Roger S. Pressman, McGraw Hills, 7th Edition, 2009
2. Software Engineering, Ian Sommerville, Addison Wesley Longman, 9th Edition, March 2010
3. Fundamentals of Software Engineering, Rajib Mall, Prentice-Hall of India, 3rd Edition, 2009
4. Just Enough Software Test Automation, Daniel J. Mosley, Bruce A. Posey, Prentice Hall, July 2002

Webliography

1. Structured Testing: A Testing Methodology Using the Cyclomatic Complexity Metric
2. Control flow graphs and loop optimizations - Purdue Engineering
3. Control Flow Analysis
4. Basic Blocks and Flow Graphs
5. Measuring Structures (Complexity)
6. Thomas J. McCabe, "A Complexity Measure," in Proceedings of the 2nd International Conference on Software Engineering (ICSE '76). IEEE Computer Society Press, Los Alamitos, CA, USA, 407-, 1976.
7. "C4 Software Technology Reference Guide", Software Engineering Institute (SEI)
8. Cyclomatic Complexity
9. Complexity Metrics
10. S. R. Chidamber and C. F. Kemerer, "A Metrics Suite for Object Oriented Design," in IEEE Trans. Softw. Eng. 20, 6, 476-493. Jun 1994.
11. Java: Method Cyclomatic Complexity
12. M. Genero, M Piattini, and C. Calero: “A Survey of Metrics for UML Class Diagrams,” in Journal of Object Technology, vol. 4, no. 9, November-December 2005, pp. 59-92.