Saratee, Piyanut, and Poompipat Rukponmongkol. “Factors Affecting the Success of Internal Quality Assurance in Digital-Age Educational Institutions Under the Office of Kamphaeng Phet Primary Educational Service Area 1”. Journal of Graduate MCU KhonKaen Campus 12, no. 1 (March 29, 2025): 320–336. accessed September 2, 2026. https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/275624.