Kayman, Martin A.
Macmillan, 1992
Buku Teks
Larson, Jil, author
Cambridge University Press, 2009
eBooks
Sakaki, Atsuko, author
Harvard University Asia Center, 1999
Buku Teks
Puckett, Kent, author
Cambridge University Press, 2016
Buku Teks
Holloway, John, author
Cambridge University Press, 1979
Buku Teks