García Gutiérrez, Carol, and Norma Durán Narváez. “Revisiting the Concept of Self-Efficacy As a Language Learning Enhancer”. GiST Education and Learning Research Journal, no. 15 (January 23, 2018): 68-95. Accessed November 16, 2018. https://gistjournal.unica.edu.co/index.php/gist/article/view/391.