A/HRC/7/78 page 88 35. Urges all States that have not yet signed and ratified or acceded to the Convention concerning Minimum Age for Admission to Employment, 1973 (No. 138) and the Convention concerning the Prohibition and Immediate Action for the Elimination of the Worst Forms of Child Labour, 1999 (No. 182) of the International Labour Organization to consider doing so; IV. PREVENTION AND ERADICATION OF THE SALE OF CHILDREN, CHILD PROSTITUTION AND CHILD PORNOGRAPHY 36. Calls upon all States: (a) To take all necessary measures to eliminate, criminalize and penalize effectively all forms of sexual exploitation and sexual abuse of children, including within the family or for commercial purposes, child pornography and child prostitution, child trafficking, child sex tourism, the sale of children and their organs, and the use of the Internet for these purposes, and to take effective measures against the criminalization of children who are victims of exploitation; (b) To take effective measures to ensure prosecution of offenders, including through international assistance in connection with investigations or criminal or extradition proceedings; (c) children; To increase cooperation at all levels to prevent and dismantle networks trafficking in (d) To consider signing and ratifying or acceding to the Protocol to Prevent, Suppress and Punish Trafficking in Persons, Especially Women and Children, supplementing the United Nations Convention against Transnational Organized Crime; (e) To address effectively the needs of victims of trafficking, of sale of children, of child prostitution and child pornography, including their safety and protection, physical and psychological recovery and full reintegration into their family and society and bearing in mind the best interest of the child; (f) To combat the existence of a market that encourages such criminal practices against children and factors leading to these practices, including through the adoption and effective application of preventive and enforcement measures targeting customers or individuals who sexually exploit or sexually abuse children, as well as ensuring public awareness of the problem; (g) To take the necessary measures to eliminate the sale of children, child prostitution and child pornography by adopting a holistic approach and addressing all contributing factors; 37. Welcomes the comprehensive guidelines and recommendations contained in the report of the Special Rapporteur on the sale of children, child prostitution and child pornography to the Council in 2008 (A/HRC/7/8) for the establishment and management of rehabilitation and assistance programmes for children who are victims of sexual commercial exploitation and trafficking and strongly encourages States to take them into account in order to provide the child victims with assistance, protection and a successful rehabilitation in their families and society, taking into consideration the importance of separate programmes that attend to their special needs;