Columbia subject headings:
Charitable uses, trusts, and foundations--Persian Gulf States--History.
Persian Gulf States--History.
Waqf--Persian Gulf States--History.
Harvard subject headings:
Charitable uses, trusts, and foundations--Persian Gulf States--History.
Persian Gulf States--History.
Waqf--Persian Gulf States--History.
Princeton subject headings:
Charitable uses, trusts, and foundations--Persian Gulf States--History.
Persian Gulf States--History.
Waqf--Persian Gulf States--History.