Runciman, Steven (1987). A history of the Crusades, vol. 2: The Kingdom of Jerusalem and the Frankish East, 1100-1187. Cambridge: Cambridge University Press. pp. 18–23. ISBN052134770X. OCLC17461930.
Runciman, Steven (1987). A history of the Crusades, vol. 2: The Kingdom of Jerusalem and the Frankish East, 1100-1187. Cambridge: Cambridge University Press. pp. 23–25. ISBN052134770X. OCLC17461930.
Runciman, Steven (1987). A history of the Crusades, vol. 2: The Kingdom of Jerusalem and the Frankish East, 1100-1187. Cambridge: Cambridge University Press. pp. 25–27. ISBN052134770X. OCLC17461930.
Runciman, Steven (1987). A history of the Crusades, vol. 2: The Kingdom of Jerusalem and the Frankish East, 1100-1187. Cambridge: Cambridge University Press. pp. 27–29. ISBN052134770X. OCLC17461930.
Runciman, Steven (1987). A history of the Crusades, vol. 2: The Kingdom of Jerusalem and the Frankish East, 1100-1187. Cambridge: Cambridge University Press. p. 29. ISBN052134770X. OCLC17461930.