Klein, Natalie, author
Oxford Univesity Press, 2012
Buku Teks
edited by Richard Burchill, Nigel D. White and Justin Morris
Cambridge University Press, 2005
Buku Teks
Eldefonso, Edward
John Wiley , 1983
Buku Teks
Wallace, Harvey, author
Prentice-Hall, 2001
Buku Teks
Skolnick, Jerome H., author
John Wiley & Sons, 1966
Buku Teks