THINH, Nguyen Thi. The Implementation of Flipped Classroom Approach in an Academic English Course. VNU Journal of Foreign Studies, [S.l.], v. 37, n. 3, june 2021. ISSN 2525-2445. Available at: <https://js.vnu.edu.vn/FS/article/view/4649>. Date accessed: 27 apr. 2024. doi: https://doi.org/10.25073/2525-2445/vnufs.4649.