Phamunchakko, Prasit, and Kitima Indrambarya. 2021. “Code-Switching of a Filipino Teacher Who Taught Thai Students at a Bilingual School”. KKU Research Journal (Graduate Studies) Humanities and Social Sciences 9 (2):146-58. https://so04.tci-thaijo.org/index.php/gskkuhs/article/view/240433.