Coupland, R., author
McMillan, 1935
Buku Teks
A DK Publishing, 2001
Buku Teks
Odom, William E., author
Yale University Press, 2004
Buku Teks
Williams, Robin M., author
Alfred A. Knopf, 1961
Buku Teks
Williams, Robin M., author
Alfred A. Knopf, 1966
Buku Teks