Guoqi, Xu, author
Oxford University Press, 2017
eBooks
Reischauer, Edwin O., author
Houghton Mifflin, 1960, 1970
Buku Teks
Rojas, Carlos, author
London : Harvard University Press, 2010
Buku Teks
Ooi Keat Gin, author
ISEAS/BUFS, 2019
Artikel Jurnal
Bury, J.B., author
Random House, [Date of publication not identified]
Buku Teks