Kanpakdee, P. “Situation Leadership of the School Administration Affecting the Core Competency of Teacher Under the Secondary Education Service Area Office Supanburi”. Journal of Dhamma for Life, vol. 31, no. 3, Sept. 2025, pp. 671-85, https://so08.tci-thaijo.org/index.php/dhammalife/article/view/4611.