^Gérard Chaliand, A People without a country: the Kurds and Kurdistan, Zed Books, 1993, ISBN978-1-85649-194-5, p. 55.(in English)
^Dana Adams Schmidt, Journey among brave men, Little, Brown, 1964, p. 57.(in English)
^Erhard Franz, Kurden und Kurdentum: Zeitgeschichte eines Volkes und seiner Nationalbewegungen, Deutsches Orient-Institut, 1986, ISBN3-89173-006-3, p. 140.(in German)
^"Biro". Dengekurdistan.nu (in Kurdish). Retrieved 21 December 2019.
^White, Paul J. (2000). Primitive rebels or revolutionary modernizers?: the Kurdish national movement in Turkey. Zed Books. p. 77. ISBN978-1-85649-822-7.