“Antibacterial Activity Test of an Ethanol Extract Toner Formulation from Water Apple Leaves (Syzygium Aqueum) Against Propionibacterium Acnes”. JURNAL FARMASIMED (JFM) 8, no. 2 (April 30, 2026): 1174–1183. Accessed May 6, 2026. https://ejournal.medistra.ac.id/index.php/JFM/article/view/3467.