Guidance of the Persians for the Operations of Surds
إرشاد العجم لأعمال الجذور الصم
Irshād al-ʿajam li-aʿmāl al-judhūr al-ṣamm
Muhammad ibn Abi al-Fath Muhammad al-Masriإرشاد العجم لأعمال الجذور الصم
Irshād al-ʿajam li-aʿmāl al-judhūr al-ṣamm
Muhammad ibn Abi al-Fath Muhammad al-Masri