Sampson, Edward E., author
John Wiley & Sons, 1981
Buku Teks
Bruhn, John G.
Charles C. Thomas Publisher, 1993
Buku Teks
edit by Brenda Freshman, Louis Rubino, Yolanda (Linda) Reid Chassiakos
Jones and Bartlett, 2010
Buku Teks
Ehrlich, Ann, author
Delmar Cengage Learning, 2012
Multimedia
Stanfield, Peggy S. , author
Jones & Bartlett Learning, 2012
Buku Teks