1. Optional Protocol to Prevent, Suppress and Punish Trafficking in Persons, Especially Women and Children, Supplementing the United Nations Convention Against Transnational Organized Crime, G.A. Res. 55/25 (2000),2000
2. Council of Europe Convention on Action against Trafficking in Human Beings and its Explanatory Report,2005
3. Principles and guidelines on human rights and trafficking,2002
4. A Global Alliance Against Forced Labour,2005
5. Stolen smiles: The physical and psychological health consequences of women and adolescents trafficked in Europe;C Zimmerman,2006