CITES (Convention on the International Trade in Endangered Species of Wild Flora and Fauna). 2011. Appendix I, II, and III as adopted by the Conference of the Parties, valid from 27 April 2011. Available online at the CITES website.

*Dunbar, R.I.M. (1978). Competition and niche separation in a high altitude herbivore community in Ethiopia. East African Wildlife Journal 16: 183-199.

Geberemedhin, B. & Grubb, P. (2008). Capra walie. In: IUCN (2010). IUCN Red List of Threatened Species. Version 2010.4. Available online at the IUCN Red List website.

Nievergelt, B. (1981). Ibexes in an African Environment. Ecology and social system of the Walia Ibex in the Simen Mountains, Ethiopia. Springer Verlag: Berlin and New York. Ecology Studies, Volume 40. 173 pp.

Nievergelt, B. (1990). Ethiopian Ibex or Walia Ibex. Pp. 523-525 in: Parker, S.P. ed. Grzimek's Encyclopedia of Mammals, Volume 5. McGraw-Hill, New York.

Anon. (1969). Only a park can save walia ibex. Oryx 10: 84.

Anon. (1973). Threats to the walia ibex. Oryx 12: 10.

Anon. (1974). Increase in walia ibex. Oryx 12: 405.

Anon. (1975). Walias on the increase. Oryx 13: 139.

Blower, J. (1968). The wildlife of Ethiopia. Oryx 9: 276.

*Brown, L. (1969). The Walia ibex. Walia (Journal of the Ethiopian Wildlife Natural History Society) 1: 9-14.

*Dunbar, R.I.M., and Dunbar, P. (1981). The grouping behaviour of male Walia ibex with special reference to the rut. African Journal of Ecology 19: 251-263.

*Nievergelt, B. (1969). Le bouquetin d'éthiopie gravement menacé. Biological Conservation 1(4): 334-335.

Nievergelt, B. (1970). The Walia ibex (Capra waliae) of Ethiopia and its annual reproductive cycle. Transcript of the 9th International Congress on Game Biology, Moscow: 868-871.

Nievergelt, B. (1971). A method for estimating the increase or decrease in population of Walia ibex in the Semien Mountains National Park. Mimeograph; Zoology Institute, Zurich University. 15 pp.

Nievergelt, B. (1974). A comparison of rutting behaviour and grouping in Ethiopian and alpine ibex. Pp. 324-340 in: Geist, V. and Walther, F. [eds]. The Behaviour of Ungulates and its Relation to Management. IUCN New Series Number 24. IUCN: Morges.

*Shackleton, D.M. [ed.] (1997). Wild Sheep and Goats and their Relatives. Status Survey and Action Plan for Caprinae. IUCN: Gland, Switzerland and Cambridge, UK.

Puff, C., and Nemomissa, S. (2001). The Simen Mountains (Ethiopia): Comments on plant biodiversity, endemism, phytogeographical affinities and historical aspects. Systematics and Geography of Plants 71(2): 975-991.

*Yalden, D.W., and Largen, M.J. (1992). The endemic mammals of Ethiopia. Mammal Review 22(3/4): 115-150.

Yalden, D.W., Largen, M.J., Kock, D., and Hillman, J.C. (1996). Catalogue of the mammals of Ethiopia and Eritrea. 7. Revised checklist, zoogeography and conservation. Tropical Zoology 9: 73-164.