Columbia subject headings:
Christian heresies--Turkey--History.
Islamic sects--Turkey--History.
Sufism--Turkey--History.
Turkey--Religion.
Harvard subject headings:
Christian heresies--Turkey--History.
Islamic sects--Turkey--History.
Social movements--Turkey--History.
Sufism--Turkey--History
Turkey--Religion--History.
Princeton subject headings:
Christian heresies--Turkey--History.
Islamic sects--Turkey--History.
Sufism--Turkey--History.
Turkey--Religion--History.