Intelligence Research Computational Intelligence Research Group at the UniversityofPretoria Computational Intelligence Library (CILib) - 計算知能ソフトウェア構築用フレームワーク
STATISTICS SA (2001) Census 2001. Pretoria: Statistics South Africa. ^ a b c Lewis, P. (2009) Ethnologue: Languages of the World. Dallas: SIL International
datafirst.uct.ac.za. 25 November 2018閲覧。 ^ Census 2011: Census in brief. Pretoria: Statistics South Africa. (2012). p. 21. ISBN 9780621413885. オリジナルの13 May