Sources:
Why Do Slums Form?
[1]
Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat,
World Population Prospects: The 2012 Revision
http://esa.un.org/unpd/wpp/Graphs/Probabilistic/POP/TOT/
[3]
Centre for Affordable Housing Finance in Africa CAHF 2015 Yearbook
Housing Finance in Africa
A Review of Some of Africa's Housing Markets
October 2015
[4]
UN Habitat website, Urban Themes, Housing & Slum Upgrading
http://unhabitat.org/urban-themes/housing-slum-upgrading/
What Exactly Defines a Slum?
Common Approaches
[1]
Towards Habitat III: Confronting the disjuncture between global policy and local practice on Africa's ‘challenge of slums’
Sylvia Croese a, * , Liza Rose Cirolia b , Nick Graham c
a Department of Sociology and Social Anthropology, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch, 7602, South Africa b African Centre for Cities, University of Cape Town, Upper Campus, Room 2.13, Shell Environmental & Geographical Science Building, Pvt Bag X3, Rondebosch, 7701, South Africa c PDG, PO Box 46830, Glosderry, 7702, Cape Town, South Africa
http://www.sciencedirect.com/science/article/pii/S0197397515301454