References
- Güldemann, Tom & Rainer Vossen. 2000. Khoisan. In Bernd Heine & Derek Nurse (eds.), African languages: An introduction, 99–122. Cambridge: Cambridge University Press.
- Heine, Berndt & Henry Honken. 2010. The Kx’a family. Journal of Asian and African Studies 79. 5–36.
- Starostin, George. 2013. Languages of Africa: An attempt at a lexicostatistical classification. Volume I: methodology. Khoisan languages. Moscow: Languages of Slavic Cultures.
- Vossen, Rainer (ed.). 2012. The Khoisan languages (Routledge language family series). New York: Routledge.