Gaynor, Allan Kibbe
Allyn and Bacon, 1992
Buku Teks
Thompson, William J., author
Wiley , 1997
Multimedia
[edited by] Robert S. Beardsley, Carole L. Kimberlin, William N. Tindall
Wolters Kluwer/Lippincott Williams & Wilkins, 2012
Buku Teks
Dickson, Donald T.
New York Free Press 1998,
Buku Teks
Boyce, B. Ann, author
McGraw-Hill, 2003
Buku Teks