1. Amrit, C., & van Hillegersberg, J. (2008). Detecting coordination problems in collaborative software development environments. Information Systems Journal, 25(1), 57–70.
2. Aspray, W., Mayadas, F., & Vardi, M. Y. (Eds.). (2006). Globalization and offshoring of software: A report of the ACM job migration task force. http://www.acm.org/globalizationreport/pdf/fullfinal.pdf : Association for Computing Machinery.
3. Bailey, K. D. (1994). Typologies and taxonomies: An introduction to classification techniques. Thousand Oaks: Sage.
4. (The XP series);K Beck,2000
5. Boehm, B., & Turner, R. (2004). Balancing Agility and Discipline. Boston: Addison-Wesley.