laosombutthawee, pramuan, and S. . prapromma. “ In the Pilot Areas of Chaiyaphum”. The Office of Disease Prevention and Control 9th Nakhon Ratchasima Journal, vol. 26, no. 2, May 2020, pp. 71-81, https://he02.tci-thaijo.org/index.php/ODPC9/article/view/240644.