* {{cite book|author=Boyle, J.A., (Editor). ''|title=The Cambridge History of Iran: Volume 5, The Saljuq and Mongol Periods ''. |location=|publisher=Cambridge University Press; Reissue edition (January 1, ). |year=1968. ISBN |isbn=978-0-521-06936-6.|pages=}} Perhaps the best overview of the history of the il-khanate. Covers politics, economics, religion, culture and the arts and sciences. Also has a section on the [[Isma'ilis]], Hulagu's nemesis.
* [[Encyclopedia Iranica]] has scholar-reviewed articles on a wide range of Persian subjects, including Hulagu.
* {{cite book|last=Morgan, |first=David. ''|title=The Mongols''. |location=|publisher=Blackwell Publishers; Reprint edition, April Apri|year=1990. ISBN |isbn=978-0-631-17563-6.|pages=}} Best for an overview of the wider context of medieval Mongol history and culture.
