Changkhaen, A. and Toomnan, P. (2026) “Guidelines for Developing Learning Leadership of School Administrator under The Secondary Educational Service Area Office Nongkhai”, KKU Research Journal (Graduate Studies) Humanities and Social Sciences, 13(3), pp. 89–100. available at: https://so04.tci-thaijo.org/index.php/gskkuhs/article/view/279119 (accessed: 30 September 2026).