Mineola: Dover Publications. ISBN 0-486-41445-0. ↑ Yunli Shi (January 2003), "The Korean Adaptation of the Chinese-Islamic Astronomical Tables", Archive for History of Exact Sciences, Springer, 57 (1): 25–60 [26], ISSN 1432-0657, doi:10.1007/s00407-002-0060-z ↑ Yunli Shi (January 2003), "The Korean Adaptation of the Chinese-Islamic Astronomical Tables", Archive for History of Exact Sciences, Springer, 57 (1): 25–60 [30], ISSN 1432-0657, doi:10.1007/s00407-002-0060-z 1 2 3 4 Needham, Volume 3, p.444 ↑ Needham, Volume 3, p.444-445 1 2 3 4 Needham, Volume 3, p.438-439 ↑ Sivin, Nathan.