PART 2.1 (Box 8 continued) RIGHT/OBLIGATION TREATY SOURCE Obligation to promote physical and psychological recovery and social integration of child victims • Convention on the Rights of the Child, article 39. Obligation to criminalize sale of children, child prostitution and child pornography • • Optional Protocol on the sale of children, article 3; Worst Forms of Child Labour Convention, article 3 (a)–(b). Right of children to a nationality and identity • Convention on the Rights of the Child, articles 7 (1) and 8. 66 RECOMMENDED PRINCIPLES AND GUIDELINES ON HUMAN RIGHTS AND HUMAN TRAFFICKING