Shafie, A. A., and M. A. Hassali. “Willingness to Pay for a pharmacist’s Dispensing Service: A Cross-Sectional Pilot Study in the State of Penang, Malaysia”. Pharmacy Practice, Vol. 8, no. 2, June 2010, pp. 116-21, https://pharmacypractice.org/journal/index.php/pp/article/view/120.