Mungello, David E. The Great Encounter of China and the West, 1500–1800 Rowman & Littlefield; 3 edition (28 Mar 2009). ISBN978-0-7425-5798-7. p. 97. [1]
Mungello, David Emil (2009). The great encounter of China and the West, 1500-1800. Critical issues in history (3rd ed.). Lanham, MD: Rowman & Littlefield. p. 97. ISBN978-0-7425-5798-7. OCLC317504474.