Knapp, Donna, author
Course Technology, Cengage Learning, 2011
Buku Teks
Shelly, Gary B., author
Anaheim, 1970
Buku Referensi
Micropro International Corporation, 1977
Buku Teks
Borland International, 1988
Buku Teks
Weaver, James L., author
Apress, 2004
Buku Teks