1. Stuttering therapy: The relation between changes in symptom levels and attitudes;Andrews G.;Journal of Speech and Hearing Research,1974
2. Meta-Analysis of the Effects of Stuttering Treatment
3. If you know why you're changing a behavior, you'll know when you've changed it enough;Baer D. M.;Behavioral Assessment,1988
4. Baer D. M. (1990). The critical issue in treatment efficacy is knowing why treatment was applied: A student's response to Roger Ingham. In L. B. Olswang C. K. Thompson S. F Warren & N. Minghetti (Eds.) Treatment efficacy research in communication disorders (pp. 31-39). Rockville MD: American Speech-Language-Hearing Foundation.
5. Leaving Las Vegas