Columbia subject headings:
Omar Khayyam--Criticism and interpretation.
Ḥāfiẓ, active 14th century--Criticism and interpretation.
Harvard subject headings:
Ḥāfiẓ, active 14th century--Criticism and interpretation.
Persian literature--747-1500--History and criticism
Princeton subject headings:
Ḥāfiẓ, 14th cent.--Criticism and interpretation.
Omar Khayyam--Criticism and interpretation.