Columbia subject headings:
Qurʼan--Hermeneutics.
Qurʼan--Theology.
Sufism.
Harvard subject headings:
Qurʼan--Hermeneutics.
Qurʼan--Theology.
Sufism.
Princeton subject headings:
Qurʼan--Hermeneutics.
Qurʼan--Theology.
Sufism.