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2010 2nd International Conference on Education Technology and Computer > 2 > V2-19 - V2-22
IEEE MultiMedia > 2009 > 16 > 2 > 52 - 63
IT Professional > 2009 > 11 > 5 > 6 - 7
IEEE Transactions on Knowledge and Data Engineering > 2007 > 19 > 12 > 1680 - 1693