Cleese, John
BBC Worldwide Limited, 2003
Multimedia
Williams, Venus, author
Amistad, 2010
Buku Teks
O`Malley, Michael, author
McGraw-Hill, 2012
Buku Teks
Rich, Dorothy
Houghton Mifflin, 1992
Buku Teks
Robin, ,Jennifer, author
Jossey-Bass, 2013
Buku Teks