Tarango, Javier, Juan D. Machin-Mastromatteo, and José Refugio Romo-González. “Design and Learning Evaluation of Google Classroom and Chamilo”. IE Revista de Investigación Educativa de la REDIECH 10, no. 19 (October 21, 2019): 91 - 104. Accessed August 22, 2025. https://www.rediech.org/ojs/2017/index.php/ie_rie_rediech/article/view/518.