Sack, Sara and Sheila Simmons, Assistive Technology and Agribusiness, KU# 2713, May 31, 2001, Box: 70, Folder: 6. 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/455675 Accessed July 14, 2025.