1. Mallam Sanni Umaru, Acting Leader Boko Haram, statement in “Boko Haram ressurrects [sic], declares total Jihad.”http://www.vanguardngr.com/2009/08/boko-haram-ressurects-declares-total-jihad/
2. Radicalism, Extremism and Militancywww.isis.org.my/files/IF_2015/IF3/ISIS_Focus_3_-_2015_2.pdf
3. Exploring Religious Conflict;Trevorton,2005
4. Behind the Curve: Globalization and International Terrorism
5. Religious Hostilities Reach Six-Year Highwww.pewforum.org/2014/01/14/religious-hostilities-reach-six-year-high