Pratiwi, G., Susanti, S. and Shiyan, S. (2021) “Application of Factorial Design for Optimization of PVC-HPMC Polymers in Matrix Film Ibuprofen Patch-Transdermal Drug Delivery System”, Indonesian Journal of Chemometrics and Pharmaceutical Analysis, 1(1), pp. 11-21. doi: 10.22146/ijcpa.486.