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Kang, M., Park, J.u. & Shin, S. (2007). Developing a Cognitive Presence Scale for Measuring Students' Involvement during e-Learning Process. In C. Montgomerie & J. Seale (Eds.), Proceedings of ED-MEDIA 2007--World Conference on Educational Multimedia, Hypermedia & Telecommunications (pp. 2823-2828). Vancouver, Canada: Association for the Advancement of Computing in Education (AACE).