A. . Prayitno, Muthmainah, and H. S. . Simamora, “Determination of Total Flavonoid Content and Antioxidant Activity Test of Kelakai Stem and Leaf Extract (Stenochlaena palustris (Burm. F) Bedd)”, nuscientech, vol. 2024, no. 42, pp. 78-84, Jul. 2024.