Columbia subject headings:
India--Civilization--Arab influences.
India--Relations--Oman.
Ismailites--History.
Oman--Relations--India.
Harvard subject headings:
India--Civilization--Arab influences.
India--Relations--Oman.
Ismailites--History.
Oman--Relations--India.
Princeton subject headings:
India--Civilization--Arab influences.
India--Relations--Oman.
Ismailites--History.
Oman--Relations--India.