Silalahi, A. A., K. Ramlan Sinaga, and S. Sumaiyah. “FORMULATION AND EVALUATION OF KETOPROFEN TRANSDERMAL MATRIX PATCH CONTAINING DIFFERENT POLYMER COMPONENTS”. Asian Journal of Pharmaceutical and Clinical Research, vol. 11, no. 11, Nov. 2018, pp. 316-8, doi:10.22159/ajpcr.2018.v11i11.27282.