Duangnet, Chatree, Jinhatha Panyasorn, Noppadol Phengpinit, Warangkana Jarunai, Natamon Worachat, Ritthikrai Taweecharoen, and Chaiyos Kunanusont. “Rational Classification of Simple Disease Cases in Bangkok Dusit Medical Services Hospitals Using Relative Weight and Case Mixed Index”. The Bangkok Medical Journal 15, no. 2 (September 20, 2019): 130. Accessed October 21, 2021. https://he02.tci-thaijo.org/index.php/bkkmedj/article/view/222604.