^Evans, Craig A., The interpretation of scripture in early Judaism and Christianity, (T & T Clark International, 2000), 250.
Bacaan lanjutan
Walter Bauer 1971. Orthodoxy and Heresy in Earliest Christianity, 1934, (in English 1971): Chapter 1 "Edessa" (On-line text)
A. von Gutschmid, Untersuchungen über die Geschichte des Könligliches Osroëne, in series Mémoires de l'Académie impériale des Sciences de S. Petersbourg, series 7, vol. 35.1 (St. Petersburg, 1887)
J. B. Segal, Edessa: The Blessed City (Oxford and New York: University Press, 1970)
Schulz, Mathias, "Wegweiser ins Paradies," Der Spiegel 2372006, Pp. 158–170.