Walsh, Nancy, author
O`Reilly and Associates, 1999
Buku Teks
Lutz, Mark, author
O'Reilly, 1999
Buku Teks
Nagler, Eric, author
PWS Publishing Company, 1997
Buku Teks
Brown, Martin C., author
Osborne/McGraw-Hill, 1999
Buku Referensi
Brown, Micah, author
Prentice-Hall, 1999
Buku Referensi