Assumptions about parental participation: a legislative history, H.R. Turnbull, A. Turnbull, Wheat in Exceptional Education Quarterly, August 1982, Box: 1, Folder: 82. Personal papers of Rud Turnbull, PP 511. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/304835 Accessed June 14, 2025.