Ramdani, Mohammed; Elkhiat, Najat; Flower, Roger J (2010). "Africa: North of Sahara". In Likens, Gene E. (ed.). Encyclopedia of Inland Waters. Vol.Lake Ecosystem Ecology. San Diego, CA: Academic Press. ISBN978-0123820020. Retrieved 16 December 2012.
Komatsu, Goro; Ori, Gian Gabriele; Marinangeli, Lucia; Moersch, Jeffrey E. (2007). "Playa environments on Earth: Possible analogs for Mars". In Chapman, Mary (ed.). The Geology of Mars: Evidence from Earth-Based Analogs (5thed.). Chichester, UK: Cambridge University Press. ISBN978-0521832922. Retrieved 16 December 2012.