epartement of Oriental Studies Yale University, 1939
Buku Teks
Yang, Lien-sheng, author
Harvard - Yenching Institute , 1953
Buku Teks
Yu, Ning, author
Beijing yu yan da xue chu ban she, 2009
Buku Teks
by the inductive method and edited by Herrlee Glessner Greel
Chicago Press, 1948
Buku Teks
edited by Chi-Chen Wang
Bookman Associates, 1950
Buku Teks