LE, H. N.; NGUYEN, T. H.; DO, T. L.; NGO, T. L.; LE, V. H. N. INVESTIGATING VOCABULARY RETENTION UNDER SPACED AND MASSED LEARNING CONDITIONS IN THE EFL CLASSROOM. Hong Duc University Journal of Science, [S. l.], n. 7, p. 165-176, 2026. DOI: 10.70117/hdujs.E11.7.2026.1321. Disponível em: https://hdujs.edu.vn/index.php/js/article/view/1321. Acesso em: 27 oct. 2026.