Zumaro, M.; Rija’i, H. R.; Narsa, A. C.; Sulistiarini, R.; Helmi, H. Aktivitas Antioksidan Ekstrak Etanol Daun Kelapa Sawit (Elaeis Guineensis Jacq.): Antioxidant Activity of Oil Palm Leaf Ethanol Extract (Elaeis Guineensis Jacq.). Proc. Mul. Pharm. Conf. 2021, 14, 125-128.