Columbia subject headings:
Darîr, active 14th century. Kıssa-i Yûsuf--Language.
Turkish language--To 1500.
Harvard subject headings:
Darîr, active 14th century. Kıssa-i Yûsuf--Language.
Turkish language--To 1500.
Princeton subject headings:
Darîr, active 14th century. Kıssa-i Yûsuf.
Turkish language--To 1500.