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2. Listener responses to nonfluencies;Boehmler;Journal of Speech and Hearing Research,1958
3. Maintenance of fluency;Boberg,1981
4. Boutsen, F. & Brutten, G. (1990). Stutterers and nonstutterers: A normative investigation of children's speech-associated attitudes. Unpublished manuscript, Southern Illinois University.
5. Stuttering: Topography, assessment and behavior change strategies;Brutten,1975