3. Knighton, A. (2 June 2017). ''The Battle of Omdurman: The High-water Mark of British Imperialism.'' War History Online. Retrieved from https://www.warhistoryonline.com/history/battle-omdurman-high-water-mark-british-imperialism-m.html | 3. Knighton, A. (2 June 2017). ''The Battle of Omdurman: The High-water Mark of British Imperialism.'' War History Online. Retrieved from https://www.warhistoryonline.com/history/battle-omdurman-high-water-mark-british-imperialism-m.html |