H. CADIAO PHILIPPINES, E. C. .; B. TAN, M. J. . Effectiveness of Using a Flipped Classroom in Improving English Grammar Proficiency. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 51, n. 2, p. 45–57, 2020. Disponível em: https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/10943. Acesso em: 28 apr. 2024.