Calles-Jiménez, R. F., Paredes-Peralta, D. C., Aguirre-Alarcón, C. A., & Camacho-Oleas, M. E. (2024). Communicative activities in the development of oral competence in Ecuadorian students compared to the Cambridge Key Exam. Revista De Ciencias Sociales, 30, 19-34. https://doi.org/10.31876/rcs.v30i.42245