Aida, A., 		Suswati, E., & 		Misnawi, M.
2016 Jan 19.  Uji In Vitro Efek Ekstrak Etanol Biji Kakao (Theobroma cacao) sebagai Antibakteri terhadap Propionibacterium acnes (In Vitro Test of the Effect of Cocoa Beans (Theobroma cacao) Ethanolic Extract  as an Antibacterial against  Propionibacterium acnes). Pustaka Kesehatan. [Online] 4:1