Chinporn, P., and P. Phoojomjit. “The Guidelines for Development of Servant Leadership of School Administrators Under The Secondary Educational Service Area Office Nakhon Ratchasima: The Guidelines for Development of Servant Leadership of School Administrators Under The Secondary Educational Service Area Office Nakhon Ratchasima”. RATANABUTH JOURNAL, vol. 5, no. 2, Aug. 2023, pp. 449-63, https://so07.tci-thaijo.org/index.php/rtnb/article/view/3196.