Safra, Jacob E. The New Encyclopædia Britannica. Encyclopædia Britannica, 2003. ISBN 0-85229-961-3. с. 60. The second tradition centred on Azeri, the literary language of the eastern Oğuz in western Persia, Iraq, and eastern Anatolia before the Ottoman conquest.
Minorksy, Vladimir. The Poetry of Shah Ismail // Bulletin of the School of Oriental and African Studies, University of London 10 (4). 1942. DOI:10.1017/S0041977X00090182. с. 1053.
