Chen, Ting, Crendy Tan Yen Teng, and Xin Wang. “Professional Ethical Dilemma Scale: A Study of Validity and Reliability on Teachers”. Educational Administration: Theory and Practice 30, no. 2 (December 29, 2023). Accessed October 5, 2025. https://www.kuey.net/index.php/kuey/article/view/743.