CHANSRI-NGAM, T. Using a CEFR-Aligned Online System to Enhance Low-Proficiency EFL Learners’ Vocabulary Knowledge and Retention. Interdisciplinary Academic and Research Journal , Maha Sara Kham, TH., v. 6, n. 5, p. e297237, 2026. DOI: 10.60027/iarj.2026.e297237. Disponível em: https://so03.tci-thaijo.org/index.php/IARJ/article/view/297237. Acesso em: 1 oct. 2026.