Adeyemi, K.D., Olorunsanya, A.O.. “Comparative Analysis of Phenolic Composition and Antioxidant Effect of Seed Coat Extracts of Four Cowpea (<i>Vigna unguiculata</i>) Varieties on Broiler Meat.” Iranian Journal of Applied Animal Science, vol. 2, no. 4, 2012, pp. 343-349.