Columbia subject headings:
Alevis--Turkey--History--Sources.
Bektashi--Turkey--History--Sources.
Sufis--Turkey--History--Sources.
Sufism--Turkey--History--Sources.
Harvard subject headings:
Alevis--Turkey--Sources.
Bektashi--Turkey--Sources.
Sufis--Turkey--Sources.
Sufism--Turkey--Sources.
Princeton subject headings:
Alevis--Turkey--Sources.
Bektashi--Turkey--Sources.
Sufis--Turkey--Sources.
Sufism--Turkey--Sources.