Columbia subject headings:
Harvard subject headings:
Arabic language--Phonetics.
Qurʼan--Language, style--Early works to 1800.
Qurʼan--Terminology--Early works to 1800.
Ḍād (The Arabic letter)
Ẓāʼ (The Arabic letter)
Princeton subject headings:
Arabic language--Orthography and spelling--Early works to 1800.
Arabic language--Terms and phrases--Early works to 1800.
Dictionaries.
Ḍād (The Arabic letter)--Early works to 1800.
Qurʼan--Language, style--Early works to 1800.
Ẓāʾ (The Arabic letter)--Early works to 1800.