BALLERAS, J. M.; YIPPIKUN, C. .; CASTRO, R. B.; PRASERTSAK, A. . Developing a standardized English proficiency test based on the CEFR and language test development manual. Journal of English Language and Linguistics , Buriram, Thailand, v. 6, n. 2, p. 169–189, 2025. DOI: 10.62819/jel.2025.1007. Disponível em: https://so17.tci-thaijo.org/index.php/JEL/article/view/1007. Acesso em: 9 oct. 2025.