Gosling, Peter
Multi Media , 1985
Buku Teks SO
Simpson, Henry
McGraw-Hill, 1986
Buku Teks SO
Porter, Alan
Reading, Mass.: Addison-Wesley, c1985
Buku Teks
Norton, Peter
[publisher not identified], [date of publication not identified]
Buku Teks SO
Norton, Peter
[publisher not identified], [date of publication not identified]
Buku Teks SO