F. Wulandari, D. Mayefis, H. D. Ghiffari, and D. M. Gusmali, “Formulasi dan Uji Aktivitas Antibakteri Krim Ekstrak Etanol Rumput Laut Cokelat (Sargassum polycystum) Terhadap Bakteri Propionibacterium acnes : Formulation and Antibacterial Activity Test of Brown Seaweed (Sargassum polycystum) Ethanol Extract Cream Against Bacteria Propionibacteria acnes”, J Surya Medika, vol. 11, no. 2, pp. 64–75, Aug. 2025.