1. American College Testing Program. (1991). CAAP technical handbook. Iowa City, IA: Author.
2. Arum, R., & Roksa, J. (2011). Academically adrift: Limited learning on college campuses. Chicago, IL: The University of Chicago Press.
3. Astin, A. W. (1993). What matters in college? Four critical years revisited. San Francisco, CA: Jossey Bass.
4. Astin, A., Astin, H., Boatsman, K., Bonous-Hammarth, M., Chambers, T., Goldberg, S., et al. (1996). A social change model of leadership development: Guidebook (Version III). Los Angeles: University of California at Los Angeles, Higher Education Research Institute.
5. Bauer, K. W., & Bennett, J. S. (2003). Alumni perceptions used to assess undergraduate research experience. The Journal of Higher Education, 72(2), 210–230.