THI LAI, T.; THI HONG LIEN, N. .; NGOC VU, N. FLIPGRID APP FOR TEACHING SPEAKING SKILLS: STUDENTS’ PERCEPTIONS AND PERFORMANCE IMPACT. VNU Journal of Foreign Studies, [S. l.], v. 37, n. 6, p. 155-167, 2021. Disponível em: https://jfs.ulis.vnu.edu.vn/index.php/fs/article/view/4928. Acesso em: 25 apr. 2024.