Ḥakīm ʻUmar K̲h̲ayyām (1347 [1928 or 1929]) al-K̲h̲ayyām : yaʻnī tarjumah muntak̲h̲abah ʻUmar K̲h̲ayyām Nīshāpūrī /. Mat̤baʻ-i Shams al-Mat̤ābiʿ,. ISBN: .