1. U.S. Department of Education. ( 2000). After-school programs: Keeping children safe and smart. Washington, DC: U.S. Department of Education. http://www.ed.gov/pubs/afterschool/afterschool.pdf.
2. Afterschool Alliance. ( 2003). America after 3 pm. Washington, DC: Afterschool Alliance. http://www.afterschoolalliance.org/america_3pm.cfm.
3. Partnership for 21st Century Skills. ( 2003). Learning for the twenty-first century: A report and MILE guide for twenty-first century skills. Washington, DC: Partnership for 21st Century Skills. http://www.twenty-firstcentury skills.org.