ศรีประพันธ์ ขวัญฟ้า. “Factors of Political Campaign Affect Decision Making on the Lord Mayor of Chiang Mai Municipality Election of Voters”. Journal of Management Science Chiangrai Rajabhat University 6, no. 1 (June 6, 2018): 1–20. Accessed May 19, 2024. https://so03.tci-thaijo.org/index.php/jmscrru/article/view/127339.