Jelaskan Sumber dari Pompeius Probus

Arnold Hugh Martin Jones, John Robert Martindale, John Morris, "Pompeius Probus 6", Prosopography of the Later Roman Empire, volume 1, Cambridge University Press, 1971, , p. 740.

Lieu, Samuel N., and Dominic Montserrat eds., From Constantine to Julian: A Source History, Routledge, 1995, , p. 53.

"Faltonia Proba", The Catholic Encyclopedia, Volume XII, 1911, New York, Robert Appleton Company.