XIAO, Qinghe. “The Imperial Astronomical Bureau and the Official Catholics Community During the Late Ming and Early Qing Dynasties”. International Journal of Sino-Western Studies, no. 22 (May 13, 2022): 41–53. Accessed September 21, 2024. https://ojs.bdtopten.com/33015.eaapublishing/index.php/ijsws/article/view/176.