Isah, A., Laing, R., Quick, J., Mabadeje, A., Santoso, B., Hogerzeil, H., & Ross-Degnan, D. (2001). The Development of Reference Values for the WHO Health Facility Core Prescribing Indicators. West African Journal of Pharmacology and Drug Research, 18(1), 6–11. https://doi.org/10.4314/wajpdr.v18i1.14718