Coblin, Weldon South (2000). "A Brief History of Mandarin". Journal of the American Oriental Society. 120 (4). University of Iowa: 537–552. doi:10.2307/606615. JSTOR606615.
jstor.org
Coblin, Weldon South (2000). "A Brief History of Mandarin". Journal of the American Oriental Society. 120 (4). University of Iowa: 537–552. doi:10.2307/606615. JSTOR606615.