1. Anderson, S. (1998, September). Service learning: A national strategy for youth development. Washington, DC: George Washington University. Retrieved from www.gwu.edu/∼ccps/pop_svc.html
2. Astin, A. W., Vogelgesang, L. J., Misa, K., Anderson, J., Denson, N., Jayakumar, U., Saenz, V., & Yamamura, E. (2006). Understanding the effects of servicelearning: A study of students and faculty. Retrieved from University of California, Los Angeles, Higher Education Research Institute website: http://www.heri.ucla.edu/PDFs/pubs/reports/UnderstandingTheEffectsOfServiceLearning_FinalReport.pdf
3. Billig, S. H. (2009). Does quality really matter: Testing the new K–12 servicelearning standards for quality practice. In B. E. Moely, S. H. Billig, & B. A. Holland (Eds.), Advances in service-learning research: Vol. 9. Creating our identities in service-learning and community engagement (pp. 131–158). Greenwich, CT: Information Age.