1. Aquinas, T. (1947). Summa theologica. (Fathers of the English Dominican Province, Trans.). New York: Benzinger Bros.
2. Coggins, G. (2010). Could there have been nothing? Against metaphysical nihilism. Basingstoke: Palgrave MacMillan.
3. Craig, W. L., & Quentin, S. (1993). Theism, atheism and big bang cosmology. Oxford: Clarendon Press.
4. Dougherty, T., & Macbrayer, J. B. (Eds.). (2014). Skeptical theism: new essays. Oxford: Oxford University Press.
5. Kerr, G. (2012). A thomistic metaphysics of creation. Religious Studies, 48(3), 337–356.