Columbia subject headings:
Arabic language--Particles.
Koran--Language, style.
Harvard subject headings:
Arabic language--Particles.
Balá (The Arabic word)--Early works to 1800.
Kallā (The Arabic word)--Early works to 1800.
Naʻam (The Arabic word)--Early works to 1800.
Qurʼan--Language, style.
Princeton subject headings:
Arabic language--Particles.
Qurʼan--Language, style.