Kramer, Melinda G., author
Prentice-Hall, 1995
Buku Referensi
Miller, George
Prentice-Hall, 1986
Buku Teks
Garofalo, Gene, author
Prentice-Hall, 1994
Buku Referensi
Wilson, Billie Ann, author
Pearson Education, 2003
Multimedia
Corwin, Charles H., author
Prentice-Hall, 2001
Buku Teks