Firmansyah, Muchammad, Daniel Daniel, & Eva Marliana. " POTENTIAL ANTIOXIDANT ACTIVITY OF METHANOL EXTRACT OF SINGKIL LEAF (Premna cordifolia Roxb.) USE DPPH METHOD: A MINI RIVIEW." PROSIDING SEMINAR NASIONAL KIMIA [Online], 2.1 (2023): 103-105. Web. 27 Jul. 2024