Han Dynasty:
- https://www.history.com/topics/silk-road
- https://zhidao.baidu.com/question/983442370603366779.html
- https://iask.sina.com.cn/b/XCWUelT1t.html
- https://zhidao.baidu.com/question/2077457451997811068.html
- http://www.360doc.com/content/16/0426/14/3545243_553946415.shtml
https://www.travelchinaguide.com/silk-road/history/traveler-xuanzang.htm
https://festival.si.edu/2002/the-silk-road/smithsonian
Major, John. Geographical Setting of The Silk Road. 07 Jun, 2016.
http://www.silkroadtourcn.com/blog/184.html
(Mallory and Mair (2000). pp. 81-87)
The Decline of the Silk Road
https://www.topchinatravel.com/silk-road/the-decline-of-the-silk-road.htm
https://www.munichre.com/topics-online/en/2017/05/new-silk-road
Zhang,Qian, Chen, Min. “The Analysis of the Status of Contemporary Chinese Literature”. CSCanada.
http://www.cscanada.net/index.php/css/article/viewFile/9826/pdf
Jia, Xiaojia, et al. “Analysis of the Public on the ‘Investigation of the Silk Road Economic Belt’ Cognition .” Journal of Lanzhou Commercial College, 1 June 2015, pp. 1–7.
http://www.agronet.com.cn/News/1127013.html