Nadia Nurul Wachida, Tatiana Siska Wardani and Rahmat Hidayat (2026) “Antibacterial Activity Test Of Extract And Fraction Of N-Hexane, Ethyl Acetate And Water Of Pineapple Peel (Ananas Comosus (L.) Merr.) Against Staphylococcus Epidermidis ATCC 12228 Bacteria”, International Journal of Health Engineering and Technology, 4(6). doi: 10.55227/ijhet.v4i6.670.