Columbia subject headings:
Harvard subject headings:
Amīr Khusraw Dihlavī, approximately 1253-1325. Hasht bihisht.
Niẓāmī Ganjavī, 1140 or 1141-1202 or 1203. Haft paykar.
Princeton subject headings:
Amīr Khusraw Dihlavī, approximately 1253-1325. Hasht bihisht.
Niẓāmī Ganjavī, 1140 or 1141-1202 or 1203. Haft paykar.