TRAN HO ANH PHONG; TRAN MINH HIEU; DAO NGOC QUI. 18. The effectiveness of frequency-based practice method in TOEIC preparation for senior English majors. Tạp chí Khoa học Lạc Hồng, [S. l.], v. 1, n. 25, p. 160–166, 2026. DOI: 10.61591/jslhu.25.666. Disponível em: https://lhj.vn/index.php/lachong/article/view/666. Acesso em: 18 tháng 5. 2026.