Waters, Geoff (2015). «Liberalism interruptus: Leo Kuper and the Durban school of oppositional empirical sociology of the 1950s and 1960s». Transformation: Critical Perspectives on Southern Africa. 88 (1): 43–61. doi:10.1353/trn.2015.0020. ISSN1726-1368.
Waters, Geoff (2015). «Liberalism interruptus: Leo Kuper and the Durban school of oppositional empirical sociology of the 1950s and 1960s». Transformation: Critical Perspectives on Southern Africa. 88 (1): 43–61. doi:10.1353/trn.2015.0020. ISSN1726-1368.