References
- Lloyd Lyle E., Karlan George R. “Nonspcech communication symbols and systems: where are we going?”. Presentation at VIth Congress of the International Association for the Scientific Study of Mental Deficiency (IASSMD), TorontoCanada, August, 241982
- ASHA. Position Statement of Nonspeech Communication. ASH A J. 1981; 43: 577–581
- Montgomery Judy K. Non Oral Communication- A Training Guide for the Child Without Speech. Fountain Valley School District, Fountain Valley, California 1980
- Bureau for the Education of the Handicapped. Conference on Communication Aids for the Non Vocal Severely Handicapped Person, Alexandria, Virginia, December, 7–81976
- National Association of State Directors of Special Education. Assistive Devices for Handicapped Students - A Model and Guide for a Statewide Delivery System. Washington, DC 1980
- Shane Howard C., Bashir Anthony S. Election criteria for the adoption of an augmentative communication system: preliminary considerations. J. Speech Hear. Disord. 1980; 45: 408–414
- Cohen Carol, DeRuyter F. Technology for the communicatively impaired: a perspective for future clinicians. J. Natl. Student Speech Lang. Hear. Assoc 1982; 67–76
- Montgomery J. K. “Introduction to augmentative communication - the role of the speech and language pathologist today”. American Speech Language Hearing Association Regional Convention. 10 August, 1982