LE STRANGE G. & NICHOLSON R.A. (1921), The Fars-nama of Ibn u’l Balkhi (text in persian) (https://archive.org/details/frsnmaofibnu00ibnauoft/mode/2up )
AL-ISTAKHRI (Xe s.), Masalik al-mamalik - Livre des Routes et des Royaumes, ed. DE GOEJE M. J. (1927), Bibliotheca Geographorum Arabicorum, Vol.1, 2ed (en pers.) (https://archive.org/details/india.history.resource.91285/mode/2up )
LE STRANGE Guy (1905), the lands of the eastern caliphate - from the Moslem Conquest to the time of Timur, Cambridge Press (https://archive.org/details/landsofeasternca00lest )