1. Sexuality, disability and reproductive issues throughout the lifespan;Cole;Sexuality and Disability,1993
2. What retarded adults believe about sex;Edmonson;American Journal of Mental Deficiency,1979
3. Sexual knowledge interview schedule;Forchuk;Journal of Intellectual Disability Research,1995
4. Human sexuality;Geer,1984
5. Fundamentals of human sexuality;Katchadourian,1985