Ḥakīm ʻUmar Khayyām ; Ḥusayn Kūhī Kirmānī (1901) Rubāʻīyāt-i Ḥakīm ʻUmar Khayyām wa Tarānahʻhā Bābā Ṭāhir ʻUryān /. Fīrozdīn,. ISBN: .