Vinaiyakankovit, Phrakhru. “The Morality and Ethical Development for Teachers: การพัฒนาคุณธรรมจริยธรรมสำหรับครู”. Journal of Graduate MCU KhonKaen Campus 9, no. 2 (June 30, 2022): 1–12. accessed April 10, 2025. https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/253212.