“PENETAPAN KADAR FLAVONOID EKSTRAK ETANOL KULIT BUAH JERUK GERGA LEBONG DENGAN METODE SPEKTROFOTOMETRI UV-VIS: DETERMINATION OF FLAVONOID LEVELS OF ETHANOL EXTRACT OF ORANGE SKIN OF GERGA LEBONG FRUIT WITH UV-VIS SPECTROPHOTOMETRY METHOD” (2022) Jurnal Penelitian Farmasi Indonesia, 11(1), pp. 20–23. doi: 10.51887/jpfi.v11i1.1436.