1. Anderson, T. D., and D. R. Garrison.1997. New roles for learners at a distance. In Distance learners in higher education: Institutional responses for quality outcomes, ed. C. C. Gibson, 97-112. Madison, WI: Atwood Publishing.
2. Communication in a web-based conferencing system: the quality of computer-mediated interactions
3. Biggs, J. B.1987. Student approaches to learning and studying. Hawthorn, Victoria: Australian Council for Educational Research.
4. Biggs, J. B.1990. Teaching: design for learning. In Teaching for effective learning, ed. B. Ross, 11-26. Sydney: HERDSA.