Analysis of information sources in references of the Wikipedia article "中亚" in Chinese language version.
The Appearance of the Arabs in Central Asia under the Umayyads and the establishment of Islam", in History of Civilizations of Central Asia, Vol. IV: The Age of Achievement: AD 750 to the End of the Fifteenth Century, Part One: The Historical, Social and Economic Setting, edited by M. S. Asimov and C. E. Bosworth. Multiple History Series. Paris: Motilal Banarsidass Publ./UNESCO Publishing, 1999. excerpt from page 23: "Central Asia in the early seventh century, was ethnically, still largely an Iranian land whose people used various Middle Iranian languages.
