Stefan Goodwin, Africas Legacies Of Urbanization (2006),p. 191, https://books.google.com/books?isbn=0739133489:"...and further west the even more numerous Sara [western Central African Republic, southern Chad, and northern Cameroon."
Peoples of Africa: Burkina Faso-Comoros - Volume 2 (2001), p. 86, https://books.google.com/books?isbn=076147160X:"The Central African Republic is a land of many different peoples... The Sara (SAHR) live in the grain-growing lands of the north as well as across the border in Chad."
Western Congolian forest-savanna mosaic, su worldwildlife.org, World Wildlife Fund. URL consultato il 5 dicembre 2016 (archiviato dall'url originale il 27 settembre 2006).