NGUYEN, Minh Xuan. Flipping an IELTS writing class: Vietnamese learners’ perception. Ho Chi Minh City Open University Journal of Science - Social Sciences, [S. l.], v. 15, n. 4, p. 97–111, 2024. DOI: 10.46223/HCMCOUJS.soci.en.15.4.2293.2025. Disponível em: https://journalofscience.ou.edu.vn/index.php/soci-en/article/view/2293. Acesso em: 16 aug. 2026.