• G.R. Evans, Anselm and Talking about God (Oxford: 1978).

• J. Hick and A.C. McGill, The Many-Faced Argument (New York: 1967).

• B. Leftow, “The Ontological Argument,” in W. Wainwright (ed.), The Oxford Handbook of Philosophy of Religion (Oxford: 2005), 80-115.

• N. Malcolm, “Anselm's Ontological Arguments,” Philosophical Review 69 (1960), 41–62.

• P. Millican, "Anselm," in G. Oppy (ed.), Ontological Arguments (Cambridge: 2018), 19-43,

• A. Plantinga (ed.), The Ontological Argument (Garden City NY: 1965).

• K.A. Rogers, The Anselmian Approach to God and Creation (Lewiston: 1997).

• N. Wolterstorff, “In Defense of Gaunilo’s Defense of the Fool,” in C.S. Evans and M. Westphal (eds), Christian Perspectives on Religious Knowledge (Grand Rapids, MI: 1993).

Stanford Encyclopedia: Ontological Arguments

In Our Time: The Ontological Argument