1. Alston, William. 1989. Epistemic Justification. Ithaca: Cornell University Press.
2. Alston, William. 1996. A Realist Conception of Truth. Ithaca: Cornell University Press.
3. Anthony, Louis. 2007. Everyone Has Got It: A Defense of Non-Reductive Materialism. In Contemporary Debates in Philosophy of Mind, eds. Brain McLaughlin and Jonathan Cohen. Blackwell Publishing.
4. Armstrong, D.M. 1978. Naturalism, Materialism, and First Philosophy. Philosophia 8: 261–276.
5. Audi, Robert. 1993. The Structure of Justification. Cambridge: Cambridge University Press.