Ritintarangoon O, Khowtong W, Kongsomboon P, Kheaw-on S. “The Development of Triage System at Emergency Department in Sawanpracharak Hospital”. Journal of The Department of Medical Services, vol. 43, no. 2, Apr. 2018, pp. 146-51, https://he02.tci-thaijo.org/index.php/JDMS/article/view/248203.