Motsi, S., O. S. Ajuwon, and C. Ntim. “Bank Competition in Sub-Saharan African Countries: Has Anything Changed in the Light of 2007-2008 Global FinancialCrisis?”. SPOUDAI Journal of Economics and Business, vol. 68, no. 1, May 2018, pp. 59-83, https://spoudai.org/index.php/journal/article/view/141.