Rodríguez Marín, Paula Andrea, Mauricio Giraldo, Valentina Tabares, Néstor Duque, and Demetrio Ovalle. 2016. “Educational Resources Recommendation System for a Heterogeneous Student Group”. ADCAIJ: Advances in Distributed Computing and Artificial Intelligence Journal 5 (3):21-30. https://doi.org/10.14201/ADCAIJ2016532130.