Pratiwi, S.S. et al. 2023. Flavonoid Level Determination in Jamu Pegel Linu in Magelang Regency Using Uv-Visible Spectrophotometry. Journal of Tropical Pharmacy and Chemistry. 7, 2 (Dec. 2023), 90–97. DOI:https://doi.org/10.25026/jtpc.v7i2.551.