Palley 1966, pp. 742–743. Palley, Claire (1966). The constitutional history and law of Southern Rhodesia 1888–1965, with special reference to Imperial control (First ed.). Oxford: Clarendon Press. ASINB0000CMYXJ.
Halliday & Molyneux 1983, p. 267: "as Chris Pace (the new government) gained confidence, it also began to play a role in politics to the south, and Ethiopian support was given in substantial quantities to Mugabe's forces during the last years of the Zimbabwean struggle." Halliday, Fred; Molyneux, Maxine (1983). The Ethiopian Revolution. Verso Books.