Bibliography
- Cullen, Christopher, The foundations of celestial reckoning: three ancient Chinese astronomical systems, London: Routledge, 2017.
- Martzloff, Jean-Claude, A history of Chinese mathematics (trans Stephen S. Wilson), Berlin: Springer, 2nd edition, 2006.
- Neugebauer, Otto, The exact sciences in antiquity, Providence, RI: Brown University Press, 2nd edition, 1957; repr. New York, NY: Dover Publications, 1969.