"Iranian Languages" 16 Aralık 2014 tarihinde Wayback Machine sitesinde arşivlendi.(2009). Encyclopædia Britannica. Retrieved on 2009-04-09
Alıntı: "There were also colonies of Sogdians in various cities along the trade routes to China; in fact, most Sogdian material comes from outside Sogdiana. "
"Iranian Languages" 16 Aralık 2014 tarihinde Wayback Machine sitesinde arşivlendi.(2009). Encyclopædia Britannica. Retrieved on 2009-04-09
Alıntı: "There were also colonies of Sogdians in various cities along the trade routes to China; in fact, most Sogdian material comes from outside Sogdiana. "