Kongpaen, M., P. Phanchanyar, and Y. Boondam. “Problems of Epidemic Surveillance System in Muang District, Nakhon Ratchasima”. Maharat Nakhon Ratchasima Hospital Journal, vol. 31, no. 2, Sept. 2024, pp. 99-104, https://he04.tci-thaijo.org/index.php/MNRHJ/article/view/1980.