* MacMichael, Harold Alfred (1882) "The tribes of Northern and Central Kordofán" Cambridge University Press, Cambridge, England, ; reprinted by Frank Cass, London (1967), , as part of the series "Cass Library of African studies"*The Nuba Mountains Homepage
==Notes and references====Further reading==* MacMichael, Harold Alfred (1882) "The tribes of Northern and Central Kordofán" Cambridge University Press, Cambridge, England, ; reprinted by Frank Cass, London (1967), , as part of the series "Cass Library of African studies" 1912 edition* United States.