Desiyana, Lydia, Meutia Faradilla, & Arienovita Nurul Istiqomah. " Formulation of Peel Off Gel Mask from Robusta green coffee bean (Coffea canephor) Ethanolic Extract with Polyvinyl Alcohol." JURNAL ILMU KEFARMASIAN INDONESIA [Online], 21.1 (2023): 35-41. Web. 26 Dec. 2024