Jalur Sutra Maritim Zaman Kuno (3)

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https://zh.wikipedia.org/wiki/%E7%8F%A0%E5%B4%96%E9%83%A1

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http://en.unesco.org/silkroad/network-silk-road-cities-map-app/en

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http://www.ancient.eu/Silk_Road/

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https://depts.washington.edu/silkroad/texts/hhshu/hou_han_shu.html

http://www.guoxue.com/shibu/24shi/hansu/hsu_039.htm

http://baike.baidu.com/view/251646.htm