Somphakdee, Phrakhrusutaworathammakit. “Development of Thai Teachers to 21st Century”. Journal of Graduate Saket Review 5, no. 2 (February 23, 2021): 19–30. Accessed May 3, 2024. https://so03.tci-thaijo.org/index.php/saketreview/article/view/248930.