|Sandra Fullerton Joireman, Institutional Change in the Horn of Africa, Universal-Publishers: 1997 , p||"Africa South of the Equator," in Africa Since 1800|
|"Geographical patterning in interannual rainfall variability in the tropics and near tropics: An L-moments approach"||"Was North Africa the launch pad for modern human migrations?|
Mary Fitzpatrick and Tom Parkinson, Lonely Planet East Africa, 7th edition, Lonely Planet Publications: 2006 , p.
|Najovits, Simson 2004 Egypt, trunk of the tree, Volume 2, Algora Publishing, p||Daniel Don Nanjira, African Foreign Policy and Diplomacy: From Antiquity to the 21st Century, ABC-CLIO, 2010, p|
|"East Africa comprises ten countries: Tanzania, Burundi, Rwanda, Uganda, Sudan, Ethiopia, Eritrea, Djibouti, Somalia, and Kenya||; Wallis, James R 1999|
: "With eight countries Djibouti, Eritrea, Ethiopia, Kenya, Somalia, the Sudan, Uganda and the United Republic of Tanzania , East Africa covers a land area of 5.1