YanKomuth, Noppornpan, Chairat Pranee, and Siripo Panawong. “Development a Model of Internal Supervision With Lesson Study”. Academic Journal of Thailand National Sports University 7, no. 3 (September 1, 2015): 123–138. Accessed May 15, 2024. https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/256687.