3. Understanding human sexuality Hyde, Janet Shibley, Dubuque : McGraw-Hill Education, [2019] SW460 PSY308
5. The science of intimate relationships Fletcher, Garth J. O., Chichester, West Sussex, UK : Wiley Blackwell, [2019] COUN420
6. Exploring the dimensions of human sexuality Greenberg, Jerrold S., Burlington, MA : Jones & Bartlett Learning, [2017] SW460