1. Baumrind, D. (1973). The development of an instrumental competence through socialization. In. A. D. Pick (Ed.), Minnesota Symposium on Child Psychology (Vol. 7). Minneapolis, MN: University of Minnesota.
2. Benninga, J. S., Berkowitz, M. W., Kuehn, P., & Smith, K. (2003). The relation of character education and academic achievement in California elementary schools. Journal of Research in Character Education, 1, 17–30.
3. Benninga, J. S., Berkowitz, M. W., Kuehn, P., & Smith, K. (2006). Character and academics: What good schools do. Phi Delta Kappan, 87, 448–452.
4. Bennis, W. (2003). On becoming a leader. New York: Basic Books.
5. Berkowitz, M. W., & Bier, M. C. (2005). What works in character education: A research-driven guide for educators. Washington, DC: Character Education Partnership.