Liefdesbang: Overwin Verlatingsangst en Bindingsangst - 2014 - Auteur: Hannah Cuppen - Webshop

The Ethical Slut: A Practical Guide to Polyamory, Open Relationships and Other Freedoms in Sex and Love - 2017 - Auteur: Janet W. Hardy & Dossie Easton - PDF Drive

More Than Two: A Practical Guide to Ethical Polyamory - 2014 - Author: Franklin Veaux, Eve Rickert, Tatiana Gill & Janet Hardy- PDF Drive