3Mahnaz Moallem. An Interactive Online Course: A Collaborative Design Model [EB/OL]. Educational Technology Research and Development, 2003, (4).
4Adam Driscoll, Karl Jicha, Andrea N Online Course Deliver In-class Comparison of Student Performance and Satisfaction in an Online versus a Face-to-face Introductory Sociology Course[EB/OL]. Teaching Sociology, 2012, (4).