Rattanapaiboonwattana, S., and S. Tiacharoen. “Strategic Management and Human Resource Development of Private School in Ratchaburi Province”. Journal of Multidisciplinary in Humanities and Social Sciences, vol. 5, no. 1, Feb. 2022, pp. 109-23, https://so04.tci-thaijo.org/index.php/jmhs1_s/article/view/255057.