Srichaem ์. (2022) “ETHICAL LEADERSHIP OF SCHOOL ADMINISTRATORS OF INSTITUTE OF VOCATIONAL EDUCATION: CENTRAL REGION 1 UNDER THE OFFICE OF VOCATIONAL EDUCATION COMMISSION”, Pathumthani University Academic Journal, 14(2), pp. 67–82. available at: https://so05.tci-thaijo.org/index.php/ptujournal/article/view/259506 (accessed: 28 September 2026).