Van, Wolverton, author
Erlangga, 1989
Buku Teks
Kavanagh, John, author
Elex Media Komputindo, 1993
Buku Teks
International Business Machines Corp., 1987
Buku Teks
International Business Machines Corp., 1987
Buku Teks
Davis, William S., author
Erlangga, 1981
Buku Teks