Columbia subject headings:
Harvard subject headings:
Djannābī, Ḥasan ibn Bahrām, 868 or 869-912 or 913.
Islamic Empire--History--750-1258.
Karmathians.
Princeton subject headings:
Djannābī, Ḥasan ibn Bahrām, 868 or 9-912 or 13.
Islamic Empire--History--750-1258.
Karmathians.