พิมพาคุณ ส. (2018) “Ethical Leadership Affecting Teachers’Organizational Commitment under the Office of Secondary Educational Service Area 30”, Journal of Innovation and Learning Sciences, 11(4), pp. 216–225. available at: https://so02.tci-thaijo.org/index.php/EDGKKUJ/article/view/125578 (accessed: 13 September 2026).