1. Batson, C. D. & Ventis, L. (1982). The religious experience: A social psychological perspective. New York: Oxford University Press.
2. Goldman, R. (1968). Readiness for religion: A basis for developmental religious education. New York: Seabury. (Original work published 1965)
3. Development of Religious Thinking in Adolescence: A Test of Goldman's Theories
4. What Was That Sermon about? Predicting Memory for Religious Messages from Cognitive Psychology Theory
5. Petterson, T. (1975). The retention of religious experiences. Unpublished doctoral dissertation, University of Uppsala, Uppsala, Sweden.