Kitâb al-Masâlik waʾl-Mamâlik : (Liber viarum et regnorum) - Ibn Khurradādhbih, ʿUbayd Allāh ibn ʿAbd Allāh, ca. 820-ca. 912 (E. J. Brill, 1967)
"Nubadh min Kitāb al-kharāj, wa-ṣanʿat al-kitābah li-Abī al-Faraj Qudāmah ibn Jaʿfar al-Kātib al-Baghdādī": p. [184]-266 (Arabic part).