http://portal.state.pa.us/portal/server.pt/community/purdon%27s_statutes/7503/charter_schools/507318
97
http://portal.state.pa.us/portal/server.pt/community/charter_schools/7356
4
http://app.education.state.mn.us/Directories/report_c11.jsp
3
http://nea.org/home/16332.htm
2
http://philasd.org/about/#charter-schools
1
http://education.pa.gov/K-12/Charter%20Schools/Pages/default.aspx
1
http://education.pa.gov/K-12/Charter%20Schools/Pages/default.aspx#.Vt1jMCh1PzI
1
http://ericdigests.org/1999-2/charter.htm
1
http://education.state.mn.us/MDE/Academic_Excellence/School_Choice/Public_School_Choice/Charter_Schools/index.html
1
http://education.pa.gov/K-12/Charter%20Schools/Pages/default.aspx#.VukgDyh1PzJ
1