^Augustus Richard Norton; Joseph A. Kéchichian (2009). "Terrorism". In John L. Esposito (ed.). The Oxford Encyclopedia of the Islamic World. Oxford: Oxford University Press. ISBN9780195305135.(خۆتۆمارکردن پێویستە)
^Thomas Hegghammer (2013). "Terrorism". In Gerhard Böwering, Patricia Crone (ed.). The Princeton Encyclopedia of Islamic Political Thought. Princeton University Press. pp. 545–547.