Columbia subject headings:
Harvard subject headings:
Africa, East--Foreign relations--Oman.
Daʻwah (Islam)--Africa, East.
Islam--Africa, East.
Oman--Foreign relations--Africa, East.
Princeton subject headings:
Africa, East--Foreign relations--Oman.
Daʿwah (Islam)
Islam--Africa, East.
Oman--Foreign relations--Africa, East.