Sukumolanan, Pran, Weerapon Kwammun, Jittrawan Klangake, Bunpisit Thammakun, and Metinee Kotanu. 2023. “An Investigation of COVID-19 Deaths in Community, Nai Mueang Sub-District, Mueang District, Chaiyaphum Province During May to June, 2021”. The Office of Disease Prevention and Control 9th Nakhon Ratchasima Journal 29 (1):15-26. https://he02.tci-thaijo.org/index.php/ODPC9/article/view/258062.