Phudinkhao, Tanchanok, Sowwanee Sikkhabandit, and Panya Theerawitthayalert. 2026. “PROACTIVE LEADERSHIP DEVELOPMENT IN PRIVATE SCHOOL ADMINISTRATION FOR ENHANCING SUSTAINABILITY”. Journal of MCU Nakhondhat 13 (5). Nakhon Si Thammarat, Thailand:25-33. https://so03.tci-thaijo.org/index.php/JMND/article/view/300586.