Tarigan, Putri Diana Br, Novitaria Br Sembiring, and Muhammad Yunus. 2026. “Formulation and Activity Test of Active Fraction Gel from Robusta Coffee Beans (Coffea Canephora L.) Against Staphylococcus Aureus As a Treatment for Diabetic Ulcers”. Journal of Pharmaceutical and Sciences 9 (1):664-76. https://doi.org/10.36490/journal-jps.com.v9i1.1334.