Successful Friendships of Hispanic Children and Youth with Disabilities: An Exploratory Study, A. Turnbull, Blue-Banning, Pereira, March 1999, Box: 12, Folder: 30. Personal papers of Rud Turnbull, PP 511. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/305263 Accessed June 23, 2025.