Thamby, S. A., Juling, P., Xin, B. T. W., & Jing, N. C. (2012). Retrospective studies on drug utilization patterns of asthmatics in a Government hospital in Kedah, Malaysia. International Current Pharmaceutical Journal, 1(11), 353–360. https://doi.org/10.3329/icpj.v1i11.12060