Aren G (1978). Evangelical Pioneers in Ethiopia. Stockholm: Offset Center.

Bahru Z (1991). A History of Modern Ethiopia 1855-1974. London: James Currey.

CSO (1975). Statistical Abstract of Ethiopia. Addis Ababa: CSO.

Crummey D (1972). Priests and Politicians. Oxford: Clarendon Press.

Daniel A (1984). Protestant Missions in Wollaga: A Study of the Activities of the Missions and the Local Converts 1898 –1935.: MA Thesis in History, Addis Ababa University.

Dufton H (1867). Narrative of a Journey through Abyssinia. Westport: Negro University Press.

Fantahun A (1986). A History of the Seventh-Day Adventist Missionary Activities in Debre Tabor Awraja 1924-75'. B. A thesis in History, Addis Ababa University.

Gebreal HD (1976). Non–government Schools in Ethiopia. Language in Ethiopia. London: Oxford University Press,

Hess R (1970). Ethiopia: The Modernization of Autocracy. New York: Cornell University Press.

Hitchcock J (2012). History of the Catholic Church: From the Apostolic Age to the Third Millennium. San Francisco: Ignatius Press.

Lass-Westphal l (1972). Protestant Missions During and After the Italo-Ethiopian war 1935–37. J. Ethiop. Stud. X:l. Addis Ababa: Commercial Printing Press.

Marcus H (1994). A History of Ethiopia. Berkeley: University of California Press.

Markakis J (1974). Ethiopia: Anatomy of Traditional Polity. Oxford: Oxford University Press.

Merid W, Rubenson AS (1975). Readings in Ethiopian History for University Students Addis Ababa: Memio.

Natsoulas T (2003). A Failure of Early French Expansion in Africa: The French-Jesuit Effort in Ethiopia at the Turn of the 18th Century, J. Ethiopian Stud. 36(1):5-18.

Pankhurst R (1974). Education Language and History: An Historical Background to Post–war Ethiopia. Ethiopian J. Educ. l(Vll):l. Addis Ababa: Haile Sellasie I University Press.

Perham M (1969). The Government of Ethiopia. Evanston: Northwestern University Press.

Rubenson S (1976). The Survival of Ethiopian Independence. London: Heinemann.

Tekeste N (1990). The Crisis of Ethiopian Education. Uppsala: Uppsala University.

Trimingham JS (1976). Islam in Ethiopia. London: Frank Cass.

Truneh WS (2005). Adventism in Ethiopia: The Incredible Saga of the Beginning and Progress of the Seventh-Day Adventist Work in Ethiopia. Addis Ababa: Finfine Publishing S.C.

Ullendorff E (1960). The Ethiopians. London: Oxford University Press.