Norton, Peter
Microsoft Corp., 1985
Buku Teks
Norton, Peter
[publisher not identified], [date of publication not identified]
Buku Teks
Krumm, Robert
A Brady Book, 1987
Buku Teks
Krumm, Robert
Prentice-Hal, 1987
Buku Teks
Desmonde, William H.
Prentice-Hall, 1969
Buku Teks