IUCN SSC Antelope Specialist Group (2008). Oryx beisa. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 13 November 2008.Database entry includes a brief justification of why this species is of Near Threatened.
IUCN (International Union for Conservation of Nature) 2008. Oryx beisa. In: IUCN 2015. The IUCN Red List of Threatened Species. Version 2015.2. http://www.iucnredlist.org. Downloaded on 14 July 2015.
