Tolong jelaskan mengenai Bacaan tambahan dari Kekristenan pada abad ke-8

Lawrence, C. H. Medieval Monasticism. 3rd ed. Harlow: Pearson Education, 2001.

Kaplan, Steven 1984 Monastic Holy Man and the Christianization of Early Solomonic Ethiopia (in series Studien zur Kulturkunde)

Fletcher, Richard, The Conversion of Europe. From Paganism to Christianity 371-1386 AD. London 1997.

Padberg, Lutz v., (1998): Die Christianisierung Europas im Mittelalter, Stuttgart, Reclam (German)