Ptolemy, active 2nd century,  and Hol, Lienhart.  "Nona Asie tabula continet Ariam & Paropanisadas & Drangianam & Arachosia & Gedrosiam."  Map.  1482.  Norman B. Leventhal Map & Education Center,  https://collections.leventhalmap.org/search/commonwealth:3f462s14p (accessed February 20, 2020).