RELIABILITY AND VALIDITY OF THE INSTRUMENT FOR MEASURING MALAYSIAN POLYTECHNIC ENGLISH LANGUAGE EDUCATORS’ PERCEPTION TOWARDS THE CEFR IMPLEMENTATION. Practitioner Research, [S. l.], v. 6, p. 85–100, 2023. Disponível em: https://e-journal.uum.edu.my/index.php/pr/article/view/26070. Acesso em: 31 may. 2026.