Santhong, Decha, Usanee Sengpanit, and Donchanok Buanoi. 2019. “Perceived Behavior Public Relations Media about Democracy and Citizenship Principles in Ban Noi Sum Khi Lek Sub-District, Noen Maprang District, Phitsanulok Province”. Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University 13 (2):604-18. https://so01.tci-thaijo.org/index.php/GraduatePSRU/article/view/188731.