Zahran, M. A. (2010). Climate - Vegetation: Afro-Asian Mediterranean and Red Sea Coastal Lands. Springer Verlag, Dordrecht, The Netherlands, page 40, ISBN978-90-481-8594-8.
United States, Department of the Army (1973) "Table 1. Distribution of the Population of Libya, by Governorates 1964 and 1972" Libya (Department of the Army pamphlet 550) Government Printing Office, Washington, D.C. page 60
United States, Department of the Army (1973) Libya (Department of the Army pamphlet) Government Printing Office, Washington, D.C. page 60
