1. Alexander, Archibald. A Brief Compendium of Bible Truth. Grand Rapids, MI: Reformation Heritage Books, 2005.
2. Alexander, James Waddel. “The Life of Michael Servetus.” Biblical Repertory and Theological Review 8, no. 1 (1836): 73–96.
3. Anselm. Anselm of Canterbury: The Major Works. Edited by Brian Davies and G. R. Evans. Oxford’s World Classics. Oxford: Oxford University Press, 2008.
4. Leibniz de Deo Trino: philosophical aspects of
Leibniz's conception of the Trinity
5. Aquinas, Thomas. Summa Theologiae. Translated by Lawrence Shapcote. Latin/English Edition of the Works of St. Thomas Aquinas. Steubenville, OH: Emaus Academic, 2012.