Aguilar Trujillo, J. R., C. Álvarez Yong, and Z. R. Betancourt Betancourt. “The Teleclass and Monitoring the Development of the Teaching Unit”. Mendive. Journal on Education, vol. 3, no. 1, Dec. 2004, pp. 21-27, https://mendive.upr.edu.cu/index.php/MendiveUPR/article/view/58.