December, John, author
Prenhalindo, 1997
Buku Teks
McGraw-Hill Higher Education,
Multimedia
Farrell, Joyce, author
Course technology Cengage Learning, 2012
Buku Teks
Eckel, Bruce, author
Prentice-Hall, 2006
Buku Teks
Harold, Elliotte Rusty, author
IDG Books Worldwide, 1997
Buku Teks