Intelligence Division of British War Office (Ministry of Defence, Great Britain); Center for Ancient Middle Eastern Landscapes, Institute for the Study of Ancient Cultures, University of Chicago
British War Office (2016). Survey of Egypt: Ras El Naqb. British War Office. https://isac-idb.uchicago.edu/id/2b7659ba-a39d-4419-bf8c-3812640259c9 (map)