1. Kelley, Maurice. This Great Argument. Gloucester, Mass.: P. Smith, 1962.
2. Patterson, Annabel. "Milton, Marriage and Divorce" in A Companion to Milton. Ed. Thomas Corns. Oxford: Blackwell Publishing, 2003.
3. Reesing, John "The Materiality of God in Milton's De Doctrina Christiana" The Harvard Theological Review, Vol. 50, No. 3 (Jul., 1957)
4. Campbell, Gordon. "The Son of God in 'De Doctrina Christiana' and 'Paradise Lost'" The Modern Language Review, Vol. 75, No. 3 (Jul., 1980)