Situmorang, I. M. B.; Rahayu, F. E.; Nurhayati, O. D. Formulation and Evaluation of Liquid Soap Preparation of Robusta Green Coffee Extract (Coffea Canephora) With Virgin Coconut Oil (VCO) Base As an Antibacterial Staphylococcus Aureus. J.Pendidik.Kim 2023, 15, 214-220.