PHAM, Q. MAXIMIZING VOCABULARY RETENTION WITH GAMIFICATION TOOLS. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY, [S. l.], v. 8, n. 4, 2023. DOI: 10.51453/2354-1431/2022/837. Disponível em: http://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/837. Acesso em: 11 nov. 2024.