↑ Bronze Age China at National Gallery of Art↑ Scripts found on Erlitou pottery (written in Simplified Chinese)↑ Charles Alexander Moore, ed. (1967). The Chinese Mind: Essentials of Chinese Philosophy and Culture. U of Hawaii Press. p. 22. {{cite book}}: |author= has generic name (help)↑ Yu, Yingshi (1986). Denis Twitchett; Michael Loewe (eds.). Cambridge History of China: Volume I: the Ch'in and Han Empires, 221 B.C. – A.D. 220. University of Cambridge Press. pp. 455–458. ISBN 978-0-5212-4327-8.↑ Xu, Pingfang (2005). The Formation of Chinese Civilization: An Archaeological Perspective. Yale University Press. p. 281. ISBN 978-0-300-09382-7.↑ Gernet, Jacques (1996). A History of Chinese Civilization. Cambridge University Press. pp. 126–127. ISBN 978-0-521-49781-7.↑ Ban Chao, Britannica Online Encyclopedia↑ Mark Edward Lewis, China's Cosmopolitan Empire: The Tang Dynasty (2012). p. 1↑ Mark Edward Lewis, China'sCosmopolitan Empire: The Tang Dynasty (2012). excerpt.↑ Gabr