Carrier, Joe, Use of Non Speech Responses to Teach Communication, Submitted, May , 1972, Box: 8, Folder: 21. 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/452399 Accessed May 13, 2025.