2. Zij i jadid-i Sultani. Creator: Author: Ulugh Beg (1393-1449) Date: 15th-16th century Language: Arabic Medium: paper
3. Zīj-i jadīd-i sulṭānī Creator: Author: Ulugh Beg, 1394-1449 Date: n.d. 15th/16th century ? Language: Arabic Extent: ff. 203.