Gallardo Bonilla, Mario Alberto, and Abraham Moctezuma Franco. 2021. “Case-Problem: English Learning Based on Competencies; Realities and Perspectives from Abroad”. EDUTECH REVIEW. International Education Technologies Review Revista Internacional De Tecnologías Educativas 8 (1):pp. 1-14. https://doi.org/10.37467/gka-revedutech.v8.2580.