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IEEE Transactions on Education > 2016 > 59 > 3 > 202 - 209
IEEE Latin America Transactions > 2015 > 13 > 9 > 3142 - 3148
IEEE Transactions on Education > 2012 > 55 > 1 > 99 - 106
IEEE Transactions on Education > 2016 > 59 > 3 > 202 - 209
IEEE Latin America Transactions > 2015 > 13 > 9 > 3142 - 3148
IEEE Transactions on Education > 2012 > 55 > 1 > 99 - 106