González-Pérez, Milaisy, and Martha Ávila-Rodríguez , translators. “Pedagogical Conception of the Extra-Curricular Activity at University Center of Tlacaélel”. Revista Electrónica Educare, vol. 20, no. 3, Sept. 2016, pp. 1-15, https://doi.org/10.15359/ree.20-3.17.