Flipped Learning and Communicative Competence: An Experimental Study of English Learners. International Journal of Education in Mathematics, Science and Technology, [S. l.], v. 9, n. 4, p. 571–584, 2021. DOI: 10.46328/ijemst.1960. Disponível em: https://ijemst.com/index.php/ijemst/article/view/497. Acesso em: 3 mar. 2026.