Sukumolanan, P., W. . Kwammun, J. . Klangake, B. . Thammakun, and M. . Kotanu. “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, vol. 29, no. 1, Jan. 2023, pp. 15-26, https://he02.tci-thaijo.org/index.php/ODPC9/article/view/258062.