Yaffe, Aharon. «Dr.». International Institute on Counter-Terrorism. Interdisciplinary Centre Herzliya, 15-04-2008. Arxivat de l'original el 5 August 2020. [Consulta: 5 agost 2020].
Yaffe, Aharon. «Dr.». International Institute on Counter-Terrorism. Interdisciplinary Centre Herzliya, 15-04-2008. Arxivat de l'original el 5 August 2020. [Consulta: 5 agost 2020].