1. The DHS Program STATcompiler - South Africa [https://www.statcompiler.com/en/].
2. South Africa Demographic and Health Survey 2016: Key Indicators Report [http://www.statssa.gov.za/publications/Report%2003-00-09/Report%2003-00-092016.pdf].
3. World Development Indicators - South Africa [https://data.worldbank.org/country/south-africa?view=chart].
4. Country Profile - South Africa [https://databank.worldbank.org/views/reports/reportwidget.aspx?Report_Name=CountryProfile&Id=b450fd57&tbar=y&dd=y&inf=n&zm=n&country=ZAF].
5. The World Factbook- South Africa [https://www.cia.gov/library/publications/the-world-factbook/geos/sf.html].