- Visser , Söhnge and Lowe , van Riet . 1937 . The Geology and Archaeology of the Vaal River Basin , Pretoria : Government Printer . Geol. Memoir No. 15,
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- Rogers , Howard . 1933 . Native Administration in the Union of South Africa , the Witwatersrand University Press .
- Lewin , Julius . June 1941 . “ Short Survey of Native Law in South Africa ” . In Bantu Studies June ,
- Chadwick , J. C. C. 1879 . Commentaries on Native Laws, Customs, and Usages , Maritzburg : Vause, Slatter and Co. .
African Studies
Volume 2, 1943 - Issue 1