Rodríguez, M., V. Lezama, F. Otero, and M. Castillo. “Improving the English Listening Skill by Taking Advantage of the Available Technologies”. CIEX JOURNAL, vol. 1, no. 9, Nov. 2019, pp. 19-26, https://journal.ciex.edu.mx/index.php/cJ/article/view/90.