Edward Robinson (1841). Biblical Researches in Palestine, Mount Sinai and Arabia Petraea: a journal of travels in the year 1838. Crocker and Brewster. ص. 380.
Khamisy, Rabei G; Pringle, Denys (2018). "Richard of Cornwall's treaty with Egypt, 1241". In Menache; Kedar; Balard (eds.). Crusading and Trading between West and East: Studies in Honour of David Jacoby (بالإنجليزية). Routledge. p. 55. ISBN:978-1-351-39072-9.
Jackson، Peter (2007). "The Crusades of 1239–41 and their aftermath". في Hawting، Gerald R. (المحرر). Muslims, Mongols and Crusaders: An Anthology of Articles. Routledge. ISBN:978-0-203-64182-8., p. 229.