Aktivitas Antioksidan Ekstrak Etanol Batang, Daun, Dan Akar Kopasanda (Chromolaena Odorata L.) Dengan Metode FRAP (Ferric Reducing Antioxidant Power): Antioxidant Activity of Ethanol Extract of Stems, Leaves, and Roots of Kopasanda (Chromolaena Odorata L.) With FRAP (Ferric Reducing Antioxidant Power) Method. J. Sains. Kes 2022, 4 (5), 473–480.