1. Adepoju, A. (2005). Review of research and data on human trafficking in sub-Saharan Africa. In International Organization for Migration (Ed.), Data and research on human trafficking: A global survey (pp. 75–98). Geneva: International Organization for Migration.
2. Aronowitz, A. (2009). Human trafficking, human misery. The global trade in human beings. Weatport: Praeger.
3. Bonetti, M., Mencaroni, A., & Nicodemi, F. (2011), Atlante sociale sulla tratta. Interventi e servizi in Toscana. Centro Servizi Volontariato Toscana.
4. Bosco, F., Di Cortemiglia, V. L., & Serojitdinov, A. (2009). Human trafficking patterns. In C. Friesendorf (Ed.), Strategies against human trafficking: The rule of the security sector (pp. 35–82). Vienna: National Defence Academy and Austrian Ministry of Defence and Sports.
5. Carchedi, F., & Orfano, I. (Eds.). (2007). La tratta di persone in Italia—1 Evoluzione del fenomeno e ambiti di sfruttamento. Milano: Franco Angeli.