American Printing House for the Blind. (2001). Distribution of eligible students based on the federal quota census of January 3, 2000 (Fiscal Year 2001). [Online]. Retrieved April 29, 2007, from http://www.aph.org/fedquotpgm/dist01.html
3.
Office of Special Education Programs (OSEP, 1992). OSEP data dictionary. In Special Education Team, Wisconsin Department of Public Instruction, Instructions for PI-2197 (p. 33). [Online]. Retrieved September 1, 2007, from: http://dpi.state.wi.us/sped/doc/ccinstr06.doc