พันธุวัฒน์ ปัญญเดช -. 2020. “Development and Utilization of Research Tools in Activities Enhancing Ethics, Follow-Up, and Life Skills for Students in a Long-Term”. Journal of Thai Ombudsman 13 (2):81-119. https://so04.tci-thaijo.org/index.php/ombudsman/article/view/210596.