THANG, N. T.; PHUONG, N. T.; HANH, P. K.; LAN, N. M.; QUYNH, N. P.; PHUONG, P. T. M.; LY, D. T.; NGAN, D. T. H. HAPPINESS INDICATOR OF STUDENTS OF VNU UNIVERSITY OF LANGUAGES AND INTERNATIONAL STUDIES DURING COVID-19 PANDEMIC LOCKDOWN IN HANOI, VIETNAM. VNU Journal of Foreign Studies, [S. l.], v. 38, n. 4, p. 76-86, 2022. Disponível em: https://jfs.ulis.vnu.edu.vn/index.php/fs/article/view/5042. Acesso em: 29 mar. 2024.