1. Agnes, M. (Ed.). (2001). Webster’s new world college dictionary. Foster City: IDG Books Worldwide.
2. Arnheim, R. (1986). New essays on the psychology of art. Berkeley: University of California Press.
3. Arnheim, R. (1988). The power of the center: A study of composition in the visual arts. Berkeley: University of California Press.
4. Arnheim, R. (1996). The split and the structure: Twenty-eight essays. Berkeley: University of California Press.
5. Capps, D. (1970). John Henry Newman: A study of religious leadership. Ann Arbor, MI: UMI Dissertation Services.