Eberhard, David M., Gary F. Simons, and Charles D. Fennig (eds.). 2020. Sandawe. Ethnologue: Languages of the World. Twenty-third edition. Dallas, Texas: SIL International. Online version: http://www.ethnologue.com.
Güldemann, Tom y Edward D. Elderkin (2010) "On external genealogical relationships of the Khoe family". En: Brenzinger, Matthias y Christa König (eds.), Lenguas y lingüística khoisan: el simposio de Riezlern 2003. Quellen zur Khoisan-Forschung 17. Köln: Rüdiger Köppe.