ایران صفوی at دانشنامه ایرانیکا, "The origins of the Safavids are clouded in obscurity. They may have been of Kurdish origin (see R. Savory, Iran Under the Safavids, 1980, p. 2; R. Matthee, "Safavid Dynasty" at iranica.com), but for all practical purposes they were Turkish-speaking and Turkified."
R. M. Savory, “'Abbas (I),” Encyclopædia Iranica, I/3, pp. 71-75; an updated version is available online at http://www.iranicaonline.org/articles/abbas-i (accessed on 10 January 2014).
muslimheritage.com
Nizamoglu, Cem (2005-08-10). "Using an Astrolabe". Muslim Heritage. Retrieved 2023-10-16.