งามเจริญมงคลจินตนา, สร้อยน้ำสมคิด, and พงศ์ศรีวัฒน์สุเทพ. “AN APPLICATION OF Q METHODOLOGY IN DEVELOPING A 4.0 LEADERSHIP MODEL FOR SCHOOL ADMINISTRATORS”. Journal of MCU Nakhondhat 6, no. 7 (September 22, 2019): 3314-3336. Accessed October 21, 2020. https://so03.tci-thaijo.org/index.php/JMND/article/view/208012.