Ermawati, Dian, Uswatun Chasanah, and Cyndy . 2023. “Formulation of Green Robust Coffee Bean Extract (Coffee Canephora) in Serum Preparation Using Gelling Agent Hidroxy Propyl Methyl Cellulose”. KnE Medicine 3 (3), 234–245. https://doi.org/10.18502/kme.v3i3.13507.