Agile Principles, Patterns, and Practices in C#

[Beck99] Kent Beck, Extreme Programming Explained: Embrace Change, Addison-Wesley, 1999.

[Highsmith2000] James A. Highsmith, Adaptive Software Development: A Collaborative Approach to Managing Complex Systems, Dorset House, 2000.

[Newkirk2001] James Newkirk and Robert C. Martin, Extreme Programming in Practice, Addison-Wesley, 2001.