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Huang, H.M., Liaw, S.S. & You, G.N. (2005). The framework of Knowledge Sharing in E-learning Environments: Based on Activity Theory. In P. Kommers & G. Richards (Eds.), Proceedings of ED-MEDIA 2005--World Conference on Educational Multimedia, Hypermedia & Telecommunications (pp. 4265-4271). Montreal, Canada: Association for the Advancement of Computing in Education (AACE).