References
- Cutter, S. L., D. B. Richardson, and T. J. Wilbanks, eds. 2003. The Geographical Dimensions of Terrorism. New York: Routledge.
- AWG [Arab World Geographer]. 2001. Forum on 11 September 2001 Events. Arab World Geographer 4 (2). [http:users.fmg.uva.nlvmamadouhawg].