1. Patterns of Global Terrorism 2001. United States Department of State. United States Department of State website. May, 2002, Available at: http://www.state.gov/documents/organization/10319.pdf. Accessed February 4, 2005
2. Patterns of Global Terrorism 2002. United States Department of State. United States Department of State website. April, 2003, Available at: http://www.state.gov/documents/organization/20177.pdf. Accessed February 4, 2005
3. Patterns of Global Terrorism 2003. United States Department of State. United States Department of State website. April, 2004, Available at: http://www.state.gov/documents/organization/31912.pdf. Accessed February 4, 2005
4. Terrorism 2000/2001. United States Department of Justice, Federal Bureau of Investigation, Counterterrorism Division, Federal Bureau of Investigation website, Publication #0308. Available at: http://www.fbi.gov/publications/terror/terror2000_2001.htm. Accessed February 4, 2005.