Somboonsil, T., S. Waranusat, and C. Phuttaprasert. “A Structural Equation Model of Management Factors Educational Quality Development for Small Secondary Schools Under Educational Service Phichit”. Rajapark Journal, vol. 17, no. 51, Apr. 2023, pp. 18-34, https://so05.tci-thaijo.org/index.php/RJPJ/article/view/258705.