M.D, B. ., J. Yelwa, G. Yakubu, and I. Sanchi. “Comparative Profitability Analysis of Watermelon and Pepper Production in Danko-Wasagu Local Government Area of Kebbi State, Nigeria”. Review of Knowledge Economy, vol. 1, no. 2, Dec. 2014, pp. 39-47, doi:10.18488/journal.67/2014.1.2/67.2.39.47.