1. Diagnostic and statistical manual of mental disorders DSM IV TR;American Psychiatric Association,2000
2. Diagnostic and statistical manual of mental disorders DSM III;American Psychiatric Association,1980
3. Diagnostic and statistical manual of mental disorders DSM IV;American Psychiatric Association,1994
4. Diagnostic and statistical manual of mental disorders DSM III;American Psychiatric Association,1987
5. Human sexuality and its problems;Bancroft,2009