Opler, E. Morris (1983), The Apachean Culture Pattern and Its Origins p. 381. In Alfonso Ortiz (Ed.), Handbook of North American Indians, Volume 10: Southwest (p. 368-392). Washington, D.C.: Smithsonian Institution. Gearchiveerd op 17 augustus 2023.
Handbook of Texas Online, J. Gilbert McAllister and H. Allen Anderson, "Kiowa Apache Indians", geraadpleegd op 30 juni 2017
web.archive.org
Opler, E. Morris (1983), The Apachean Culture Pattern and Its Origins p. 381. In Alfonso Ortiz (Ed.), Handbook of North American Indians, Volume 10: Southwest (p. 368-392). Washington, D.C.: Smithsonian Institution. Gearchiveerd op 17 augustus 2023.