FITRIYANTI, F.; HENDRAWAN, M. N. R.; ASTUTI, K. I. Antibacterial Activity Test of Ethanol Extract Pineapple (Ananas comosus (L.) Merr.) Peel against Growth of Propionibacterium acnes. Borneo Journal of Pharmacy, v. 2, n. 2, p. 108–113, 30 Nov.2019.