MASYHADI, Achmad Fauzi; ARIFANI, Yudhi; ASMARA, Candra Hadi. The Use Of Flipped Classroom To Improve Grammatical Mastery Using Whastsapp Group Discussion. Journal of English Teaching, Literature, and Applied Linguistics, [S. l.], v. 5, n. 2, p. 128–136, 2022. DOI: 10.30587/jetlal.v5i2.3821. Disponível em: https://journal.umg.ac.id/index.php/jetlal/article/view/3821. Acesso em: 6 jun. 2025.