Columbia subject headings:
Islamic Empire--Historiography.
Islamic coins--History.
Harvard subject headings:
Coins, Arab--History.
Dirham (Coin)--History.
Islamic coins--History.
Islamic numismatics.
Numismatics, Ancient--Arab countries.
Princeton subject headings:
Coins, Arab--History.
Dirham (Coin)--History.
Islamic coins--History.
Islamic numismatics.
Numismatics, Arabic.