amchang, chompoonut. “Service Area Analysis of Emergency Medical Service Center in Chonburi Province”. Journal of Management Sciences Suratthani Rajabhat University 8, no. 1 (June 26, 2021): 39–60. accessed September 10, 2026. https://so03.tci-thaijo.org/index.php/msj/article/view/246956.