Villarreal-Puga, Marcos, e Josué Villarreal Puga. “Inequalities in Retention and Academic Performance in Virtual Environments: A Comparative Analysis Between Immigrant and Ecuadorian Students in Ecuador Participating in a Continuing Education Course in Moodle”. REMHU, Revista Interdisciplinar da Mobilidade Humana, v. 33, dezembro de 2025, p. e332169, https://doi.org/10.1590/1980-85852503880003319.