Barber, Malcolm (2003). "The career of Philip of Nablus in the kingdom of Jerusalem". In Edbury, Peter; Phillips, Jonathan (eds.). The Experience of Crusading, Volume 2. Cambridge University Press. pp. 60–74. ISBN0-521-78151-5.
Milwright, Marcus (2008). The Fortress of the Raven: Karak in the Middle Islamic Period (1100–1650). BRILL. ISBN978-90-04-16519-9.
Runciman, Steven (1989). A History of the Crusades, Volume II: The Kingdom of Jerusalem and the Frankish East, 1100-1187. Cambridge University Press. ISBN0-521-06163-6.