paijuntuek, therdsak, sripokangkul, siwach, mueangming, attapol, Surayasimapong, T. and ruangthamsing, charles 2021. Competition and Factors Affecting Victory of House of Representatives Candidates in Loei Province during the 2019 General Election. King Prajadhipok’s Institute Journal. 18, 3 (Jan. 2021), 58–78.