Penthong, P., C. Tangtong, S. Arphorn, S. Jarupat Maruo, and J. Sillabutra. “The Stress Level and Stress Related Factors Among Ambulance Drivers”. Nursing Journal CMU, vol. 48, no. 4, Dec. 2021, pp. 93-108, https://he02.tci-thaijo.org/index.php/cmunursing/article/view/253631.