1. Is Your Voice Telling on You?;Boone,1997
2. The Voice and Voice Therapy;Boone,2010
3. One Voice: Integrating Singing and Theatre Voice Techniques;Melton,2012
4. The Voice and Voice Therapy;Boone,2000
5. Raised and lowered larynx—the effect on vowel formant frequencies;Sundberg;STL-QPSR,1976