1. Astley, J. (2002),Ordinary Theology: looking, listening and learning in theology, Aldershot, Ashgate.
2. Barth, K. (1975),Church Dogmatics, Vol. I/1, ET Edinburgh, T. & T. Clark.
3. Farley, E. (1983),Theologia: the fragmentation and unity of theological education, Philadelphia, Fortress.
4. Farley, E. (1988),The Fragility of Knowledge: theological education in the church and the university, Philadelphia, Fortress.
5. Ford, D.F. (1999),Theology: a very short introduction, Oxford, Oxford University Press.