Thamgtam , C. . “Opinions of the People on the Election of the President of the Yasothon Provincial Administrative Organization : Case study in Kut Chum Phatthana Subdistrict Municipality, Kut Chum District, Yasothon Province”. RATANABUTH JOURNAL, vol. 3, no. 1, Apr. 2021, pp. 1-12, https://so07.tci-thaijo.org/index.php/rtnb/article/view/590.