Haiman, A., Lockwood, M. y Walicek, D. E. (2017) Ā«The Teaching of English at U.P.R.R.P., F.E.G.: A model for reflexive, critical and creative thinking about languageĀ», Revista Umbral, 0(4), pp. 39-65. Disponible en: https://revistas.upr.edu/index.php/umbral/article/view/8446 (Accedido: 25enero2022).