Hongsing, N., V. Prempanichnukul, and N. Sangmahachai. “Effects of Internal Control System Efficiency on Organizational Success of Local Administrative Organization in Roi-Et Province”. Journal of Research and Development Institute Rajabhat Maha Sarakham University, vol. 5, no. 2, Dec. 2018, pp. 25-36, https://so03.tci-thaijo.org/index.php/rdirmu/article/view/210457.