1. Severe stuttering associated with right hemisphere lesion;Ardila;Brain and Language,1986
2. A case of acquired stuttering;Bijleveld;Folia Phoniatrica et Logopaedica,1994
3. A handbook on stuttering;Bloodstein,2008
4. Boersma, P., & Weenink, D. (2009). Praat: Doing phonetics by computer (Version 5.1.18) [Computer program]. Retrieved October 9, 2009, from http://www.praat.org/.
5. Behavior Assessment Battery;Brutten,2003