*"The History of the Saffarids of Sistan and the Maliks of Nimruz (247/861 to 949/1452-3)", Columbia Lectures on Iranian Studies no.
* The History of the Saffarids of Sistan and the Maliks of Nimruz (247/861 to 949/1452—1453), Columbia Lectures on Iranian Studies № 7, Costa Mesa, Calif. — New York, 1994.