M. Zumaro, H. R. Rija’i, A. C. Narsa, R. Sulistiarini, and H. Helmi, “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., vol. 14, no. 1, pp. 125–128, Dec. 2021.