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. JPFI [Internet]. 2022 Jun. 30 [cited 2024 May 14];11(1):20-3. Available from: https://ejournal.stifar-riau.ac.id/index.php/jpfi/article/view/1436