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IEEE Transactions on Learning Technologies > 2015 > 8 > 1 > 124 - 135
IEEE Internet Computing > 2014 > 18 > 1 > 12 - 19
IT Professional > 2014 > 16 > 5 > 9 - 11
IEEE Transactions on Learning Technologies > 2015 > 8 > 1 > 124 - 135
IEEE Internet Computing > 2014 > 18 > 1 > 12 - 19
IT Professional > 2014 > 16 > 5 > 9 - 11