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IEEE Transactions on Learning Technologies > 2015 > 8 > 1 > 98 - 110
IEEE Transactions on Learning Technologies > 2015 > 8 > 1 > 5 - 17
IEEE Transactions on Learning Technologies > 2015 > 8 > 1 > 31 - 42
IEEE Transactions on Learning Technologies > 2015 > 8 > 1 > 98 - 110
IEEE Transactions on Learning Technologies > 2015 > 8 > 1 > 5 - 17
IEEE Transactions on Learning Technologies > 2015 > 8 > 1 > 31 - 42