Promta, U-rasa. 2022. “Self-Coaching Program for Self-Esteem in Students of Faculty of Education, Rajabhat Maha Sarakham University”. Journal of Education Rajabhat Maha Sarakham University 19 (1). Bangkok, Thailand:207-17. https://so06.tci-thaijo.org/index.php/edu-rmu/article/view/256505.