AfDB (2011).The Middle of the Pyramid: Dynamics of the Middle Class in Africa. Market Brief, 20 April 2011, AfDB.
AfDB, OECD and UNECA (2010). African Economic Outlook 2010. Paris: OECD.
AfDB, OECD, UNDP and UNECA (2011).African Economic Outlook 2011. Paris: OECD.
Berg, Andrew, Pedro Conceicao, Ayodele Odusola et al. (2012).Enhancing Development Assistance to Africa: Lessons from Scaling- Up Scenarios. New York: IMF.