1. Al-Baghdadi, A. (2018, Aug. 22). But Give Glad Tidings to Those Who Patiently Persevere. Al Furqan Media.
2. Allendorfer, W., & Herring, S. (2015, Dec.). ISIS vs. the U.S. government: A war of online video propaganda. First Monday. Retrieved from https://firstmonday.org/article/view/6336/5165
3. Apps, P. (2015, Dec. 29). Major poll says 74% of Britons expect a major terrorist attack in 2016. The Independent. Retrieved from http://www.independent.co.uk/news/uk/home-news/2016-predictions-polled-britons-say-donald-trump-will-disappear-from-us-politics-and-uk-will-suffer-a6789686.html
4. Berger, J. M. (2015, March 6). The ISIS Twitter census: Making sense of ISIS’s use of Twitter. Brookings Institute. Retrieved from https://www.brookings.edu/blog/order-from-chaos/2015/03/06/the-isis-twitter-census-making-sense-of-isiss-use-of-twitter/
5. Berger, J. M., & Strathearn, B. (2013). Who Matters Online: Measuring Influence, Evaluating Content and Countering Violent Extremism in Online Social Networks. In Developments in Radicalization and Political Violence. International Centre for the Study of Radicalization and Political Violence. Retrieved from http://icsr.info/wp-content/uploads/2013/03/ICSR_Berger-and-Strathearn.pdf