Collaborative learning as a didactic strategy to promote oral English practice in extra-school hours using Google Hangouts. Revista Torreón Universitario, [S. l.], v. 9, n. 26, p. 10–25, 2020. DOI: 10.5377/torreon.v9i26.10255. Disponível em: https://revistas.unan.edu.ni/index.php/Torreon/article/view/3142. Acesso em: 9 aug. 2025.