NGUYEN, Huynh; NGUYEN, Buu Huan. The Effects of Role-Play Activities on The Speaking Performance of Primary School Learners Learning English as a Foreign Language (EFL): A Quasi-Experimental Study in An Giang Province. Tạp chí Khoa học Đại học Đồng Tháp, [S. l.], v. 15, n. 03S, p. 224–241, 2026. DOI: 10.52714/dthu.sch.3508.1980. Disponível em: https://dthujs.vn/index.php/dthujs/article/view/3508. Acesso em: 15 tháng 7. 2026.