Coba jelasin Bacaan tambahan dari Dunia Kristiani dong

Bainton, Roland H. (1966). Christendom: a Short History of Christianity and Its Impact on Western Civilization, in series, Harper Colophon Books. New York: Harper & Row. 2 vol., ill.

Whalen, Brett Edward (2009). Dominion of God: Christendom and Apocalypse in the Middle Ages. Cambridge, Mass.: Harvard University Press.