Pinsagul, P., Ketmek, M., Phrommeenet , P., Chantorn, P., Sriuan , P., Intawong, S. and Charoensup, C. 2026. Guidelines for Enhancing the Efficiency of Personnel Management in Schools under the Secondary Educational Service Area Office Phichit. Journal of Dhamma for Life . 32, 2 (Mar. 2026), 399–413.