References
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- Fristoe, M., & Lloyd, L. L. (1980). Planning an initial expressive sign lexicon for persons with severe communication impairment. Journal of Speech and Hearing Disorders, 45, 170–180.
- Higgins, J., Shane, H., Baker, B., & Costello, J. (1986, November). Systematic approaches to vocabulary selection for communication aid users. Short course presented at the American Speech, Lan-guage, and Hearing Association Annual Convention, Detroit.
- Huer, M. B., & Lloyd, L. L. (1990). AAC users' perspective on augmentative and alternative communication. Augmentative and Alternative Communication, 6, 250–257.
- Karlan, G., & Lloyd, L. L. (1983). Considerations in the planning of communication intervention: Selecting a lexicon. Journal of the Association for the Severely Handicapped, 8, 13–25.
- Merriam-Webster (1974). The Merriam-Webster Dictionary. Spring-field, MA: Merriam.
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