A. I, L. ., O. . M. I, O. . A. O, and A. . S. A. “Returns on Investments and Volatility Rate in the Nigerian Banking Industry”. Asian Economic and Financial Review, vol. 3, no. 10, Oct. 2013, pp. 1298-13, https://archive.aessweb.com/index.php/5002/article/view/1090.