Allen, N. J., & Rushton, J. P. (1983). Personality characteristics of community health volunteers: A review. Journal of Voluntary Action Research, 12, 36–49.

Alt, M. N., & Medrich, E. A. (1994). Student outcomes from participation in community service. Paper prepared for the U.S. Department of Education Office of Research.

Astin, A., & Sax, L. (1998). How undergraduates are affected by service participation. Journal of College Student Development, 39(3), 251–263.

Astin, A., Sax, L., & Avalos, J. (1999). Long term effects of volunteerism during the undergraduate years. Review of Higher Education, 22(2), 187–202.

Astin, A., Vogelgesang, L., Ikeda, E., & Yee, J. (2000). How service-learning affects students. Los Angeles: Higher Education Research Institute, University of California, Los Angeles.

Balazadeh, N. (1996). Service-learning and the sociological imagination: Approach and assessment. Paper presented at the National Historically Black Colleges and Universities Faculty Development Symposium, Memphis, TN.

Barrow, J. C. (1986). Fostering cognitive development of students. San Francisco: Jossey-Bass.

Batchelder, T. H., & Root, S. (1994). Effects of an undergraduate program to integrate academic learning and service: Cognitive, prosocial cognitive and identity outcomes. Journal of Adolescence, 17, 341–356.