共 7 条
- [6] Perceptions of Interaction: The critical predictor in distance education[J] . Catherine P. Fulford,Shuqiang Zhang.American Journal of Distance Education . 1993 (3)
- [7] The New Rules of Engagement:Keeping Online Students Involved and On Track in Asynchronous Discussion Forums. D.Wakley. Journal of Instructional Dilivery Systems . 2002