Laanger Imperial Diplomacy (1935) keessatti dhiyeesse, Roonaaldi Roobinsen fi Joon Andiree Galaager Africa and the Victorians (1961) keessatti dhiyeessanii fi kan Biriiten Afrikaa Bahaa bara 1880-90nitti sababa yaaddoo tarsiimawaa Laga Naayilii fi Ijiipti waan bulchituuf qabdurraa kaatee qabatte jedhu - achumaan karaa garbarraa gara Indiyaa geessu Suwiiz Kanaaal qabatte jedhu - kana Joon Daarwin bara 1997 morme.
