Sharah, H. A., et al. “The Economic Implication of Cylas Spp. And Rot Organisms Infestations on the Marketability of Sweet Potato (Ipomoea Batatas L.) in Three Markets in Maiduguri Metropolis, Borno State, Nigeria”. International Journal of Economic Development Research and Investment (IJEDRI), vol. 3, no. 3, Aug. 2012, pp. 32-38, http://icidr.org.ng/index.php/Ijedri/article/view/824.