FISSY, S., SARI, R., & PRATIWI, L. 2014 Sep 30. Effectivebess of Anti Acne Gel Containing Ginger Ethanol Extract (Zingiber officinale Rosc.Var. Rubrum) against Propionibacterium acnes dan Staphylococcus epidermidis. JURNAL ILMU KEFARMASIAN INDONESIA. [Online] 12:2