Kunok, C. “The Satisfaction and Needs of Public Administration Students toward Teaching Assistants in Collage of Politics and Governance, Mahasarakham University”. Journal of Politics and Governance, vol. 6, no. 2, Aug. 2016, pp. 470-88, https://so03.tci-thaijo.org/index.php/jopag/article/view/272948.