K. A. . Tahir, U. A. . Miskad, K. . Djawad, S. Djide, K. Khaerani, and M. . Indrisari, “Evaluation of Antioxidant Activity of Botto-Botto Leaf Fraction (Chromolaena Odorata L.) Using DPPH and ABTS Methods”, Open Access Maced J Med Sci, vol. 9, no. A, pp. 183–188, Apr. 2021.