Tolong jelaskan mengenai Catatan dari Jia Dan

Liu, Pean. (1991). 'Viewing Chinese ancient navigation and shipbuilding through Zheng He's ocean expeditions', Proceedings of the International Sailing Ships Conference in Shanghai.

Liu Xu et al., Old Book of Tang, vol. 138 .

Needham, Joseph. (1986). Science and Civilization in China: Volume 4, Physics and Physical Technology, Part 3, Civil Engineering and Nautics. Taipei: Caves Books Ltd.

Ouyang Xiu et al., New Book of Tang, vol. 166 .

Schafer, Edward H. (1963). The Golden Peaches of Samarkand: A study of T’ang Exotics. University of California Press. Berkeley and Los Angeles. 1st paperback edition: 1985. ISBN 0-520-05462-8.

Sima Guang et al., Zizhi Tongjian, vols. 228, 230, 232, 234, 235, 236.