1. Layers of Preventive measures for soft target protection against terrorist attacks;Schmid,2020
2. Antalya Memorandum on the Protection of Soft Targets in a Counterterrorism Context;Aa.;The Global Counter-Terrorism Forum,2017
3. Protecting vulnerable targets against terrorism;Aa.;United Nations Office of Counter-Terrorism (UNOCT),2022
4. Social Network Analysis: A case study of the Islamist terrorist network