United States Hydrographic Office (USA); Center for Ancient Middle Eastern Landscapes, Institute for the Study of Ancient Cultures, University of Chicago
U.S. Hydrographic Office (2016). Air Navigation Chart: Lower Saharra V30-38. U.S. Hydrographic Office. https://isac-idb.uchicago.edu/id/98ef6b8b-70d4-47ca-934b-cb94a1af6531 (map)