Lugha za Khoisan
Honken, Henry. 1998. "Types of sound correspondence patterns in Khoisan languages." In Language, Identity and Conceptualization among the Khoisan, edited by Mathias Schladt, 171-193. Quellen zur Khoisan-Forschung/Research in Khoisan studies 15. Köln: Rüdiger Köppe Verlag.