4Ertmer, E & Newby, T. (2013). Behaviorism, cognitiv- ism, constructivism: comparing critical features from an instruc-tional design perspective. Performance hnprovement Quarterly,26(2).pp. 43-71.
2Beichen Branch, Tianjin Radio and Television University (Beichen Branch, Tianjin Radio and Television University, Tianjin 300400).网络环境教育与电大基层工作策略[J].天津电大学报,2003,7(1):10-12.