1. Benner, D. (1998). Care of souls. Grand Rapids, MI: Baker Book House Co.
2. Bentz, V. M., & Shapiro, J. J. (1998). Mindful inquiry in social research. Thousand Oaks, CA: SAGE Publications.
3. Durkheim, E. (1915/1976). The elementary forms of the religious life (J. W. Swain, Trans., First Free Press paperback ed.). New York: The Free Press.
4. Elkins, D. N., Hedstrom, L. J., Hughes, L. L., & Leaf, J. A. (1988). Toward a humanistic-phenomenological spirituality: Definition, description, and measurement. Journal of Humanistic Psychology, 28(4), 5.
5. Fowler, J. W. (1995). Stages of faith: The psychology of human development and the quest for meaning. San Francisco: HarperSanFrancisco.