THINH, N. T. The Implementation of Flipped Classroom Approach in an Academic English Course. VNU Journal of Foreign Studies, [S. l.], v. 37, n. 3, 2021. DOI: 10.25073/2525-2445/vnufs.4649. Disponível em: https://jfs.ulis.vnu.edu.vn/index.php/fs/article/view/4649. Acesso em: 18 apr. 2024.