Kanchai, T. “Thai EFL University Lecturers’ Viewpoints towards Impacts of the CEFR on their English Language Curricula and Teaching Practice”. NIDA Journal of Language and Communication, vol. 24, no. 35, July 2019, pp. 23-47, https://so04.tci-thaijo.org/index.php/NJLC/article/view/202420.