Brakke, David (octubre de 1994). «Canon Formation and Social Conflict in Fourth-Century Egypt: Athanasius of Alexandria's Thirty-Ninth 'Festal Letter'». The Harvard Theological Review87 (4): 395-419. JSTOR1509966.
newadvent.org
The Cambridge History of the Bible (volume 1) eds. P. R. Ackroyd and C. F. Evans (Cambridge University Press, 1970) p. 305; cf. the Catholic Encyclopedia, Canon of the New Testament