Abdo-Rabbo, A., M. Al-Ansari, B. C. Gunn, and B. J. Suleiman. “The Use of Medicines in Oman : Public Knowledge, Attitudes and Practices”. Sultan Qaboos University Medical Journal, vol. 9, no. 2, Aug. 2009, pp. 124-31, https://journals.squ.edu.om/index.php/squmj/article/view/1417.