1. Technical Assistance Center on Positive Behavior Interventions and Supports, Office of Special Education Programs, US Department of Education. School-wide PBIS (positive behavior interventions and supports). Eugene, OR: Technical Assistance Center on Positive Behavior Interventions and Supports, Office of Special Education Programs, US Department of Education; 2009. Available at: www.pbis.org. Accessed October 17, 2012
2. Opportunities Suspended: The Devastating Consequences of Zero Tolerance and School Discipline Policies. Cambridge, MA: Civil Rights Project, Harvard University; 2000. Available at: www.eric.ed.gov/ERICWebPortal/contentdelivery/servlet/ERICServlet?accno=ED454314. Accessed October 17, 2012
3. Wraight S. Services for expelled students: overview of research and policy. Naperville, IL: Regional Educational Laboratory Midwest at Learning Point Associates; 2010. Available at: http://dpi.wi.gov/sspw/doc/services4expelled.doc. Accessed October 17, 2012