“ANALYSIS ANTIOXIDANT ACTIVITY AND TOTAL FLAVONOID CONTENT COMBINATION OF ETHANOL EXTRACT OF KENCUR RHIZOME (Kaempferiae Galanga L.) AND TAPAK DARA LEAF (Catharanthus Roseus) USING DPPH METHOD: ANTIOXIDANT ACTIVITY”, ijhsrd, vol. 5, no. 2, pp. 128–138, Dec. 2023, doi: 10.36566/ijhsrd/Vol5.Iss2/186.