Columbia subject headings:
Arabic poetry--Sudan--History and criticism.
Ḥardillū, Sayyid Aḥmad--Criticism and interpretation.
Harvard subject headings:
Ḥārdīllū, Muḥammad Aḥmad, 1835-1917.
Princeton subject headings:
Arabic poctry--Sudan--History and Criticism.
Ḥardillū, Sayyid Aḥmad--Criticism and interpretation.