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IEEE Transactions on Education > 2011 > 54 > 1 > 156 - 163
2010 2nd International Conference on Education Technology and Computer > 1 > V1-216 - V1-218
2010 2nd International Conference on Future Computer and Communication > 3 > V3-273 - V3-276
2010 2nd International Conference on Future Computer and Communication > 2 > V2-645 - V2-648