moumg-on, pratueng. 2020. “Changes of the political polarity and the influential factors that affected political decision-making in the election under the new 2017 Constitution in Ubon Ratchathani”. King Prajadhipok’s Institute Journal 18 (1):146-69. https://so06.tci-thaijo.org/index.php/kpi_journal/article/view/244960.