Umaj, P. C. K., S. Sikkhabandit, and P. Teerawithayalert. “THE LEADERSHIP DEVELOPMENT MODEL OF POLICE NON-COMMISSIONED CFFICER STUDENT CADETS TRAINING CENTER REGION 9 IN THE CONTEXT OF THE THREE SOUTHERN BORDER PROVINCES”. Journal of Educational Review Faculty of Education in MCU, vol. 7, no. 1, Apr. 2020, pp. 197-13, https://so02.tci-thaijo.org/index.php/EDMCU/article/view/241259.