Al-Siyabi, Khalid, and Kassim Al-Riyami. “Value and Types of Medicines Returned by Patients to Sultan Qaboos University Hospital Pharmacy, Oman”. Sultan Qaboos University Medical Journal 7, no. 2 (August 1, 2007): 109–115. Accessed May 4, 2024. https://journals.squ.edu.om/index.php/squmj/article/view/1283.