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Sanchez-Guerrero, L., Laureano-Cruces, A.L., Ramirez-Rodriguez, J. & Mora-Torres, M. (2015). Usability in a visual interface of an intelligent teaching system. In Proceedings of E-Learn: World Conference on E-Learning in Corporate, Government, Healthcare, and Higher Education (pp. 654-663). Kona, Hawaii, United States: Association for the Advancement of Computing in Education (AACE).