F. Fatmawati, E. H. Oktharina, H. Mulawarman, S. Sinulingga, and S. Safyudin, “Total Phenol, Flavonoid Content, and Antioxidant Activity of the Ethanol Fraction of Arcangelisia Flava Stem”, BJi, vol. 11, no. 2, pp. 80–86, Jun. 2025.