Sivarat, Napathon, and Assoc. Prof. Dr. Pakdee Phosing. “Trend of Corruption in Thailand”. Journal of Research and Development Institute Rajabhat Maha Sarakham University 5, no. 2 (December 31, 2018): 343–354. Accessed May 5, 2024. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/211155.