Zunguzane, N., J. Smallwood, and F. Emuze. “Perceptions of the Quality of Low-Income Houses in South Africa: Defects and Their Causes”. Acta Structilia, vol. 19, no. 1, Feb. 2013, pp. 19-38, https://www.ajol.info/index.php/actas/article/view/85416.