Pukdee, W., P. Silabut, S. Potiwat, and P. Tongpunchung. “The Proposed Strategies for the Development of Teacher Ethical Leadership in the Basic Education Schools”. Journal of Roi Et Rajabhat University, vol. 14, no. 3, Dec. 2020, pp. 190-8, https://so03.tci-thaijo.org/index.php/reru/article/view/226711.