Columbia subject headings:
Harvard subject headings:
Motazilites--Doctrines.
Qurʼan--Criticism, interpretation, etc.
Princeton subject headings:
Qurʼan--Commentaries--Early works to 1800.
Qurʼan--Criticism, interpretation, etc.--Early works to 1800.
Qurʼan--Language, style--Early works to 1800.