“Flavonoid Level Determination in Jamu Pegel Linu in Magelang Regency Using Uv-Visible Spectrophotometry”, J. Trop. Pharm. Chem, vol. 7, no. 2, pp. 90–97, Feb. 2025, doi: 10.30872/j.trop.pharm.chem.v7i2.155.