1. Bedore, G. L., Bedore, M. R., & Bedore, G. L., Jr. (1998). Online education: The future is now (2nd ed.). Socrates Distance Learning Technologies Group, Phoenix, AZ.
2. Boysen, P., & Van Gorp, M. J. (1997). ClassNet: Automated support of Web classes. The 25th ACM SIGUCCS Conference for University and College Computing Services, Monterey, California USA.
3. Burgess, S., & Darbyshire, P. (2006). Postgraduate student attendance: Face-to-face versus online. 2006 International Resources Management Association International Conference, CD ROM proceedings, Washington DC, May.
4. Byrnes, R., & Lo, B. (1996). A computer-aided assignment management system: Improving the teaching-learning feedback cycle. Retrieved February 12, 1999, from http://www.opennet.net.au/cmluga/byrnesw2.htm
5. Cheikes, B. A. (1995). GIA: An agent-based architecture for intelligent tutoring systems.In Proceedings of the CIKM’95 Workshop on Intelligent Information Agents.