ISWANDARI, Amelia. STUDENT ENGAGEMENT IN A VIRTUAL CLASS BY FLIP LEARNING APPLICATION. Lingua: Jurnal Ilmiah, [S. l.], v. 18, n. 1, p. 86–101, 2022. Disponível em: https://jurnal.universitaslia.ac.id/index.php/lingua/article/view/45. Acesso em: 29 may. 2025.