Srisraluang W, Dilokthornsakul P. “the Cost and Cost Saving Study of the Pharmacy Service on Leftover Medicine in Pediatric Out-Patient: A Case Study for Rheumatism in Pediatric Patients at Queen Sirikit National Institute of Child Health”. Journal of The Department of Medical Services 44, no. 3 (August 1, 2019): 58–65. Accessed April 26, 2024. https://he02.tci-thaijo.org/index.php/JDMS/article/view/246772.