Singkiao, C., M. Sureram, and L. Seenuanlae. “An Ambulance Accident With Serious Outcomes Investigation, Surin, November 2021”. The Office of Disease Prevention and Control 9th Nakhon Ratchasima Journal, vol. 28, no. 2, May 2022, pp. 53-61, https://he02.tci-thaijo.org/index.php/ODPC9/article/view/256746.