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Wu, J.W., Tsou, Y.H., Chiou, C.K. & Tseng, J.C.R. (2007). Development of a Ubiquitous Virtual Tutoring Assistant System. In C. Montgomerie & J. Seale (Eds.), Proceedings of ED-MEDIA 2007--World Conference on Educational Multimedia, Hypermedia & Telecommunications (pp. 1577-1585). Vancouver, Canada: Association for the Advancement of Computing in Education (AACE).