Ley Leyva NV, García León EP, Gonzalez Quinto MG, Vasconez Mera PL. Collaborative learning to improve the speaking skills in students of third level of the Language Center of the UTB. RMC [Internet]. 4 de enero de 2025 [citado 11 de agosto de 2025];10(1):105-33. Disponible en: https://revistas.utb.edu.ec/index.php/magazine/article/view/3667