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IEEE Transactions on Education > 2015 > 58 > 4 > 242 - 248
IEEE Transactions on Education > 2015 > 58 > 3 > 151 - 158
IEEE/ACM Joint Conference on Digital Libraries > 399 - 402
IEEE Transactions on Education > 2015 > 58 > 4 > 242 - 248
IEEE Transactions on Education > 2015 > 58 > 3 > 151 - 158
IEEE/ACM Joint Conference on Digital Libraries > 399 - 402