^"Reviews : Bernard Lewis. The Assassins : A Radical Sect in Islam. London, Weiden feld and Nicolson, 1967. p. 166". International Studies. 11 (1). SAGE: 103–04. July 1969. doi:10.1177/002088176901100108. S2CID154981699.
^Boyle, JA (April 1969). "The Assassins: a radical sect in Islam. By Bernard Lewis, pp. 166, 14 ill., 2 maps. London, Weidenfeld & Nicolson, 1967". Journal of the Royal Asiatic Society. 101 (2). Cambridge Journals: 171–72. doi:10.1017/S0035869X00127662.
^Rodinson, Maxime (2009). "Bernard Lewis: The Assassins: a radical sect in Islam. X, 166 pp., 8 plates. London: Weidenfeld and Nicolson, [1967]. 30s". Bulletin of the School of Oriental and African Studies. 32 (3): 612. doi:10.1017/S0041977X00097238. ISSN0041-977X.
^Crenshaw, Martha (1995). Terrorism in context. Penn State Press. pp. 554–. ISBN9780271010151. Retrieved 4 April 2012. This work has become the standard work on the topic, and my brief discussion of Lewis' findings in no way does justice...
^Hoffman, Bruce (1995). ""Holy terror": The implications of terrorism motivated by a religious imperative". Studies in Conflict & Terrorism. 18 (4): 271–84. doi:10.1080/10576109508435985. ISSN1057-610X. The most detailed and comprehensive study of the group can be found in Bernard Lewis, The Assassins: A Radical Sect in Islam (London: A1 Saqi Books, 1985).