“COMPARATIVE EVALUATION OF ABTS, DPPH, FRAP, NITRIC OXIDE ASSAYS FOR ANTIOXIDANT POTENTIAL, PHENOLIC & FLAVONOID CONTENT OF EHRETIA ACUMINATA R. BR. BARK”. International Research Journal of Pharmacy, vol. 9, no. 12, Dec. 2018, pp. 59-63, https://irjponline.org/index.php/irjp/article/view/2036.