Akande, Joseph Olorunfemi, and Farai Kwenda. “Does Competition Cause Stability in Banks? SFA and GMM Application to Sub-Saharan Africa Commercial Banks”. Journal of Economics and Behavioral Studies, vol. 9, no. 4(J), Sept. 2017, pp. 173-86, https://doi.org/10.22610/jebs.v9i4(J).1832.