Anurattananon, Chanpen, Prachuab Klomjit, Pattheera Promtong, and Rojareak Lekkul. 2020. “Medicine Ordering Scheduling in Public Hospital: Case Study of Sirindhorn Hospital”. Thai Industrial Engineering Network Journal 6 (2):8-19. https://ph02.tci-thaijo.org/index.php/ienj/article/view/228371.