Tam, David. “A Perfect Church on Earth – The New Discovery of an Ancient Church Site in Tangchao Dun, China”. International Journal of Sino-Western Studies 21 (December 9, 2021): 207–219. Accessed September 21, 2024. https://ojs.bdtopten.com/33015.eaapublishing/index.php/ijsws/article/view/151.