(en) Madeline Zilfi, Women and Slavery in the Late Ottoman Empire: The Design of Difference, Cambridge University Press, (ISBN978-0-521-51583-2, lire en ligne)
(en) Taef El-Azhari, Zengi and the Muslim Response to the Crusades: The politics of Jihad, Routledge, (ISBN978-1-317-58938-9, lire en ligne)