Norton, Peter
Microsoft Corp., 1985
Buku Teks SO
Dewey, Patrick R.
Meckler Corporation, 1987
Buku Referensi
Macek, Rosanne M.
Meckler Corporation, 1988
Buku Referensi
Norton, Peter
[Publisher not identified], [Date of publication not identified]
Buku Teks SO
Fensterer, Richard
Meckler, 1988
Buku Referensi