Moss, Stephen R., author
Prentice-Hall, 2001
Buku Teks
Smith, Nick, author
John Wiley & Sons, 2011
Buku Teks
Ashton, Robert, author
Gramedia Pustaka Utama, 2006
Buku Teks
Sherman, Andrew J., author
Amacom, 2011
Buku Teks
Viguerie, Patrick, author
Marshall Cavendish, 2010
Buku Teks