A separate group of non-Kurdish Northwestern Iranian languages, the Zaza–Gorani languages, are also spoken by several million ethnic Kurds.[16][17][18]
The classification of Laki as a dialect of Southern Kurdish or as a fourth language under Kurdish is a matter of debate,[5] but the differences between Laki and other Southern Kurdish dialects are minimal.[19]
The literary output in Kurdish was mostly confined to poetry until the early 20th century, when more general literature became developed. Today, the two principal written Kurdish dialects are Kurmanji and Sorani. Sorani is, along with Arabic, one of the two official languages of Iraq and is in political documents simply referred to as "Kurdish".[20][21]
^MacCagg, William O.; Silver, Brian D., eds. (1979). Soviet Asian Ethnic Frontiers. Pergamon Press. p. 94. ISBN9780080246376. Since the most active Soviet Kurdish center has been and continues to be Yerevan, the first alphabet used for publishing Kurdish in the USSR was the Armenian alphabet.
^Курдский язык (in Russian). Krugosvet. ...в Армении на основе русского алфавита с 1946 (с 1921 на основе армянской графики, с 1929 на основе латиницы).
^Khamoyan, M. (1986). "Քրդերեն [Kurdish language]". Soviet Armenian Encyclopedia (in Armenian). Vol. 12. p. 492. ...գրկ. լույս է տեսնում 1921-ից հայկ., 1929-ից՝ լատ., 1946-ից՝ ռուս. այբուբենով...
^"Social Contract – Sa-Nes". Self-Administration of North & East Syria Representation in Benelux. Archived from the original on 9 December 2018. Retrieved 22 March 2019.
^Allison, Christine. The Yezidi oral tradition in Iraqi Kurdistan. 2001. "However, it was the southern dialect of Kurdish, Sorani, the majority language of the Iraqi Kurds, which received sanction as an official language of Iraq."
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