Moreno Tapia, Javier, María Guadalupe Veytia Bucheli, و Adriana Estrada Girón. “University Tutoring, Their Needs and Opportunities in a Public Institution”. Revista Conrado 15, no. 66 (ژانویه 18, 2019): 204-208. دسترسی آگوست 28, 2021. https://conrado.ucf.edu.cu/index.php/conrado/article/view/899.