«Part of the Great Wall of China». The Wesleyan Juvenile Offering: A Miscellany of Missionary Information for Young Persons. X: 41. 1853 թ․ ապրիլ. Վերցված է 2016 թ․ փետրվարի 29-ին.
«Great Wall of China». Encyclopædia Britannica. «Large parts of the fortification system date from the 7th through the 4th century BC. In the 3rd century BC Shihuangdi (Qin Shi Huang), the first emperor of a united China (under the Qin dynasty), connected a number of existing defensive walls into a single system. Traditionally, the eastern terminus of the wall was considered to be Shanhai Pass (Shanhaiguan) in eastern Hebei province along the coast of the Bo Hai (Gulf of Chihli), and the wall's length—without its branches and other secondary sections—was thought to extend for some 6,690 km (4,160 mi).»
"Metro Tescos", The Times (London), April 26, 2010. Found at The Times website(չաշխատող հղում). Accessed May 12, 2010.
travelchinaguide.com
«Jiaoshan Great Wall». TravelChinaGuide.com. Վերցված է 2010 թ․ սեպտեմբերի 15-ին. «Jiaoshan Great Wall is located about 3 km (2 mi) from Shanhaiguan ancient city. It is named after Jiaoshan Mountain, which is the highest peak to the north of Shanhai Pass and also the first mountain the Great Wall climbs up after Shanhai Pass. Therefore Jiaoshan Mountain is noted as "The first mountain of the Great Wall".»
