References
- Crasilneck , H. B. and Hall , J. A. 1972 . Clinical hypnosis: Principles and applications , Orlando : Grune & Stratton .
- Crasilneck , H. B. and Hall , J. A. 1985 . Clinical hypnosis: Principles and applications , Orlando : Grune & Stratton .
- Kroger , W. S. 1977 . Clinical and experimental hypnosis, , 2nd ed. , Philadelphia : J. B. Lippincott .
- Wolberg , L. R. 1948 . Medical hypnosis , Vols. I & II , New York : Grune & Stratton .