Sack, Sara and Sheila Simmons, Assistive Technology and Agribusiness, KU# 2713, Correspondence, 2001 - 2002, Box: 70, Folder: 8. 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/455677 Accessed July 19, 2025.