MELÉNDEZ, Lorena; IZA, Sarah. Application of the Flipped Classroom methodology in a virtual platform for teaching English language grammar in level B1. Revista Publicando, "Quito, EC", v. 4, n. 12 (1), p. 236–246, 2017. Disponível em: https://revistapublicando.org/revista/index.php/crv/article/view/655. Acesso em: 23 jan. 2025.