Corporation for National Service and National Institute on Out-of-School Time. (2000). Making an impact on out-of-school time: A guide for Corporation for National Service programs engaged in after school, summer, and weekend activities for young people. Corporation for National Service. Retrieved from http://www.etr.org/nsrc/pdfs/niost/impact/impact.html

Costley, J. (1998). Building a professional development system that works for the field of out_of_school time. Wellesley, MA: National Institute on Out-of-School Time. Retrieved from http://www.niost.org/

Morgan, G. (1998). Credentialing in out_of_school Time: A discussion draft (MOST Initiative Professional Development Paper). Wellesley, MA: National Institute on Out-of-School Time. Retrieved from http://www.niost.org/

Walker, K. E., & Caplan, J. G. (2000). Beyond the bell: A tool-kit for creating effective after-school programs. Oak Brook, IL: North Central Regional Educational Laboratory. Retrieved from: http://www.ncrel.org/after