1. Audi, Robert. Religious Commitment and Secular Reason. Cambridge: Cambridge University Press, 2000. http://dx.doi.org/10.1017/CB09781139164528
2. Audi, Robert,and Nicholas Wolterstorff Religion in the Public Square: The Place of Religious Convictions in Political Debate. Lanham, MD: Rowman and Littlefield, 1996.
3. Black, Amy, Douglas Koopmanand David Ryden. Of Little Faith: The Politics of George WBush's Faith-Based Initiatives. Washington, DC: Georgetown University Press, 2004.