Columbia subject headings:
Harvard subject headings:
Arabic language--Grammar
Qurʼan--Criticism, Textual.
Qurʼan--Language, style.
Qurʼan--Orthography.
Princeton subject headings:
Arabic language--Grammar.
Qurʼan--Criticism, Textual.
Qurʼan--Language, style.
Qurʼan--Orthography.