G.William Skinner. Zhonghua diguo wanqi de chengshi ( The City in Late Imperial China). Beijing: Zhonghua shuju(Zhonghua Book Company), 2000.Hua Linfu. “Yingcang qingjun zhenya zaoqi taiping tianguo ditu kaoshi”(An investigation of the maps now in Britain used by the Qing troops for the suppression of the Taiping Heavenly Kingdom in its early period). Lishi yanjiu ( Historical research) 2 (2003).Li Xiaocong. “Zhongguo guditu de diaocha yu ditu xueshi lingyu de guoji hanxue jiaoliu”(Survey of ancient maps in China and international sinology communication in history of cartography). Newsletter for International China studies, Vol.1,(2010).Mao Jiaqi. Taiping tianguo duiwai guanxishi (The International Relations of the Taiping Heavenly Kingdom). Beijing: Renmin chubanshe, 1984.Wang Yifan and Zhang Jiajing. “Tongzhi chunian jiangnan diqu dixing cehui yanjiu”(A study of topographic surveying and mapping of the lower Yangtze region in the early Tongzhi Period). The Chinese Journal for the History of Science and Technology 2 (2016).Zhong Chong. “Jindai Shanghai zaoqi chengshi ditu puxi yanjiu”(Study on city map pedigree in the early time of modern Shanghai). Shilin 1 (2013).