Arayapisuttigoon, Phruek, Onlak Ruangsomboon, and Tipa Chakorn. 2021. “The analysis of overcrowding rate and The associated factors in Emergency Department (ED), Siriraj Hospital”. Thai Journal of Emergency Medicine 3 (1). Bangkok, Thailand:38-57. https://he02.tci-thaijo.org/index.php/TJEM/article/view/250459.