Orji, A., O. I. Anthony-Orji, and P. N. Mba. “Financial Liberalization and Output Growth in Nigeria: Empirical Evidence from Credit Channel”. International Journal of Economics and Financial Issues, vol. 5, no. 1, Feb. 2015, pp. 297-11, https://www.econjournals.com/index.php/ijefi/article/view/1099.