NGUYEN , Thi Ngoc Uyen. MAINTAINING ENGLISH LANGUAGE PROFICIENCY: THE CASE OF HIGH SCHOOL EFL TEACHERS IN THE CENTRAL HIGHLAND OF VIETNAM. JOURNAL OF INQUIRY INTO LANGUAGES AND CULTURES, [S. l.], v. 6, n. 1, p. 123–139, 2022. DOI: 10.63506/jilc.0601.111. Disponível em: https://jilc.vn/index.php/jilc/article/view/111.. Acesso em: 17 oct. 2026.