^Houser, George M. Rhodesia To Zimbabwe: A Chronology. New York: The Africa Fund, 1977, p. 7: ZAPU and the African National Congress of South Africa jointly began an armed struggle in northwestern Rhodesia centered in Wankie. This campaign lasted into 1968, with several hundred ZAPU and South African ANC guerrillas involved. South African troops entered Rhodesia to support the government. Prime Minister Vorster said: "We are good friends (with Rhodesia) and good friends know what their duty is when the neighbour's house is on fire."
^ abcSeegers (2018), Section: Independent Mozambique and the Role of the Armed Forces.
^Schwartz, Stephanie (2010). Youth and Post-conflict Reconstruction: Agents of Change. Washington, D.C.: United States Institute of Peace Press. pp. 34–38. ISBN978-1601270498.
Seegers, Annette (2018) [1st pub. 1986]. "From Liberation to Modernization: Transforming Revolutionary Paramilitary Forces into Standing Professional Armies". In Arlinghaus, Bruce E.; Baker, Pauline H. (eds.). African Armies: Evolution And Capabilities. Abingdon-on-Thames: Routledge. pp. 52–83. ISBN978-0-429-72578-4.
Thomas, Scott (1995). The Diplomacy of Liberation: the Foreign Relations of the ANC Since 1960 (1st ed.). London: I.B. Tauris. ISBN978-1-85043-993-6.