TEJAPUTRI, NADZILA ANINDYA, et al. “PHYTOCHEMICAL ANALYSIS AND ANTIOXIDANT PROPERTIES BY DPPH RADICAL SCAVENGER ACTIVITY OF RUELLIA BRITTONIANA FLOWER”. International Journal of Applied Pharmaceutics, vol. 11, no. 6, Dec. 2019, pp. 24-28, doi:10.22159/ijap.2019.v11s6.33531.