Risley/Jones, Exploratory Behavior of the Profoundly Multi-Handicapped, KU# 4136-3, HD 6354, March 1, 1985-February 28, 1986, Box: 68, Folder: 13. University of Kansas Schiefelbusch Institute for Life Span Studies records, RG 35. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/455607 Accessed July 12, 2025.