1. Al-Lami. (2009). Studies in Radicalisation: State of the Field Report: Politics and International Relations Working Paper.
2. Ardila, R. (2002). The psychology of the terrorist: Behavioral perspective. In C. E. Stout (Ed.), The Psychology of Terrorism: A public understanding (psychological dimension to war and peace). Vol. 1. Connecticut: Praeger.
3. Ahmed, S. N. (1993). El-Tatarof Wi El-Erhab Fi Fikr El-Mothakafeen. El-Mowagha: Gzoor El-Erhab [The confrontation: Roots of terrorism]. Cairo, Egypt: Egyptian Organization for Publishing Books.
4. Amland, H. (2012). Police say Norwegian mass killer acted alone, refute existence of ‘Knights Templar’ network. Retrieved April 4, 2013 from http://www.therepublic.com/view/story/a0a75af2e5bf4b47884383c9b8dd414f/EDOUBLEHYPHENorway-Massacre first posted 30 May.
5. Ameen, H. A. (1993). El-Shabab Wa Azmit El-Tatarrof [The youth and the problem of extremism]. In El-Mowagha: Gzoor El-Erhab [The Confrontation: Roots of Terrorism; (pp. 10-18). Cairo, Egypt: Egyptian Organization for Publishing Books.