Reprinted in James Brundage, The Crusades: A Documentary History, Milwaukee, WI: Marquette University Press 1962* Ludolphi, Rectoris Ecclesiæ Parochialis in suchem, de itinere Terræ Sanctæ,University of Michigan 1851* (أرنولد توينبي) Toynbee, Arnold J., Mankind and mother earth, Oxford university press 1976* كوم تروجة على الخريطة
Reprinted in James Brundage, The Crusades: A Documentary History, Milwaukee, WI: Marquette University Press 1962*Ludolphi, Rectoris Ecclesiæ Parochialis in suchem, de itinere Terræ Sanctæ,University of Michigan 1851*Mahdi, Dr. Shafik, Mamalik Misr wa Alsham ( Mamluks of Egypt and the Levant), Aldar Alarabiya, Beirut 2008*Runciman, Steven, A history of the Crusades 3.