Ogbuabor, Jonathan E., and Cynthia A. Nwosu. “The Impact of Deposit Money Bank’s Agricultural Credit on Agricultural Productivity in Nigeria: Evidence from an Error Correction Model”. International Journal of Economics and Financial Issues, vol. 7, no. 2, Apr. 2017, pp. 513-7, https://econjournals.com/index.php/ijefi/article/view/4118.