Pankhurst, Richard (27 February 2004). "Who Was the Third Man?". Addis Ababa Tribune. Archived from the original on 7 June 2007. Retrieved 22 February 2011.
Sbacchi, Alberto (1 August 1977). "Italy and the Treatment of the Ethiopian Aristocracy, 1937-1940". The International Journal of African Historical Studies. 10 (2). Boston: African Studies Center of the Boston University Pardee School of Global Studies: 209–241. doi:10.2307/217347. ISSN0361-7882. JSTOR217347.
Zewde, Bahru (1 August 1993). "The Ethiopian Intelligentsia and the Italo-Ethiopian War, 1935–1941". The International Journal of African Historical Studies (IJAHS). 26 (2). Boston: African Studies Center of the Boston University Pardee School of Global Studies: 271–295. doi:10.2307/219547. ISSN0361-7882. JSTOR219547.
Bekele, Yilma (14 January 2018). Kifle, Elias; Wondimu, Elias (eds.). "My brother Abebe and his WMD". Ethiopian Review. Archived from the original on 24 May 2013. Retrieved 22 May 2021.
Sbacchi, Alberto (1 August 1977). "Italy and the Treatment of the Ethiopian Aristocracy, 1937-1940". The International Journal of African Historical Studies. 10 (2). Boston: African Studies Center of the Boston University Pardee School of Global Studies: 209–241. doi:10.2307/217347. ISSN0361-7882. JSTOR217347.
Zewde, Bahru (1 August 1993). "The Ethiopian Intelligentsia and the Italo-Ethiopian War, 1935–1941". The International Journal of African Historical Studies (IJAHS). 26 (2). Boston: African Studies Center of the Boston University Pardee School of Global Studies: 271–295. doi:10.2307/219547. ISSN0361-7882. JSTOR219547.
Pankhurst, Richard (27 February 2004). "Who Was the Third Man?". Addis Ababa Tribune. Archived from the original on 7 June 2007. Retrieved 22 February 2011.
Bekele, Yilma (14 January 2018). Kifle, Elias; Wondimu, Elias (eds.). "My brother Abebe and his WMD". Ethiopian Review. Archived from the original on 24 May 2013. Retrieved 22 May 2021.
Sbacchi, Alberto (1 August 1977). "Italy and the Treatment of the Ethiopian Aristocracy, 1937-1940". The International Journal of African Historical Studies. 10 (2). Boston: African Studies Center of the Boston University Pardee School of Global Studies: 209–241. doi:10.2307/217347. ISSN0361-7882. JSTOR217347.
Knox, MacGregor (2005). Mussolini Unleashed, 1939–1941: Politics and Strategy in Fascist Italy's Last War. ACLS History E-Book Project. p. 150. OCLC278096179.
Zewde, Bahru (1 August 1993). "The Ethiopian Intelligentsia and the Italo-Ethiopian War, 1935–1941". The International Journal of African Historical Studies (IJAHS). 26 (2). Boston: African Studies Center of the Boston University Pardee School of Global Studies: 271–295. doi:10.2307/219547. ISSN0361-7882. JSTOR219547.