ภู่พลับ นิพนธ์. 2021. “SERVANT LEADERSHIP MODEL OF SCHOOL ADMINISTRATORS UNDER THE JURSIDICTION OF OFFICES OF VOCATIONAL EDUCATION COMMISSION”. Pathumthani University Academic Journal 13 (2):368-84. https://so05.tci-thaijo.org/index.php/ptujournal/article/view/253931.