1. Al Qa’idy, A. A. (2010). A course in the art of recruiting: A graded, practical program for recruiting via individual da’wa. (n.p.).
2. Basra, R., Neumann, P. R., & Brunner, C. (2016). Criminal pasts, terrorist futures: European jihadists and the new crime-terror nexus. ICSR, King’s College London.
3. Bloom, M. (2017). Constructing expertise: Terrorist recruitment and “talent spotting” in the PIRA, Al Qaeda, and ISIS. Studies in Conflict & Terrorism, 40(7), 603–623.
4. Bonner, M. (2006). Jihad in Islamic history: Doctrines and practices. Princeton University Press.
5. Cohen, K, & Kaati, L. (2018). Digital jihad: Propaganda from the Islamic State. FOI.