Columbia subject headings:
Harvard subject headings:
Niẓāmī Ganjavī, 1140 or 1141-1202 or 1203. Khusraw va Shīrīn.
Princeton subject headings:
Niẓāmī Ganjavī, 1140 or 1141-1202 or 1203. Khusraw va Shīrīn.
Niẓāmī Ganjavī, 1140 or 41-1202 or 3--Characters.