Hariningsih, Yetti, Syamsul Ma’arif, Siti Nurhayati, and Jihan Khoiriyyah. 2026. “Formulation and Efficacy Testing of Antioxidant Facial Serum Containing Gold Nanoparticles and Arabica Coffee Fruit Skin Extract (Coffea Arabica L.) As an Anti-Aging Agent”. MEDFARM: Jurnal Farmasi Dan Kesehatan 15 (1), 282-95. https://doi.org/10.48191/medfarm.v15i1.773.