Intaranongpai, S., S. Phonphan, and S. Wandee. “Factors Influencing Preventive Behavior towards COVID-19 Among People in Rural Area of Mahasarakham Province”. Princess of Naradhiwas University Journal, vol. 15, no. 2, May 2023, pp. 243-61, https://li01.tci-thaijo.org/index.php/pnujr/article/view/256211.