Hayton, Bill. The Modern Origins of China's South China Sea Claims: Maps, Misunderstandings, and the Maritime Geobody. Modern China. 2019, 45 (2): 127–170. S2CID 150132870. doi:10.1177/0097700418771678.
Quad, Matthias; Bussemachaer, Johann. Asia Partiu Orbis Maxima MDXCVIII. Barry Lawrence Ruderman Antique Maps Inc. 1598 [2021-06-02]. (原始内容存档于2019-09-01).
Hayton, Bill. The Modern Origins of China's South China Sea Claims: Maps, Misunderstandings, and the Maritime Geobody. Modern China. 2019, 45 (2): 127–170. S2CID 150132870. doi:10.1177/0097700418771678.
Quad, Matthias; Bussemachaer, Johann. Asia Partiu Orbis Maxima MDXCVIII. Barry Lawrence Ruderman Antique Maps Inc. 1598 [2021-06-02]. (原始内容存档于2019-09-01).