Paspo, P. and Sonchan, C. (2023) “21st Century Administrational Skills of School Administrators Effective to Educational Administration Quality of Schools Under Khon Kaen Primary Educational Service Area Office 5: 21st Century Administrational Skills of School Administrators Effective to Educational Administration Quality of Schools Under Khon Kaen Primary Educational Service Area Office 5”, RATANABUTH JOURNAL. Yasothon, Thailand, 5(3), pp. 78–95. available at: https://so07.tci-thaijo.org/index.php/rtnb/article/view/3396 (accessed: 13 September 2026).