Columbia subject headings:
Harvard subject headings:
Economics--Religious aspects--Islam--Early works to 1800.
Finance, Public (Islamic law)--Early works to 1800.
Finance, Public--Islamic Empire--Early works to 1800.
Princeton subject headings:
Charity laws and legislation (Islamic law)
Finance (Islamic law)
Land value taxation (Islamic law)
Money (Islamic law)
Poll tax (Islamic law)
Real property tax (Islamic law)--Early works to 1800.
Taxation (Islamic law)--Early works to 1800.
Zakat.