Shneiderman, Ben, author
Massachusetts Winthrop Publishers, 1980
Buku Teks SO
Lawlor, Steven C., author
Harcourt Brace Jovanovich, 1992
Buku Teks SO
McLeod, Raymond, author
Macmillan, 1990
Buku Teks
McLeod, Raymond, author
Macmillan, 1993
Buku Teks
McLeod, Raymond, author
Prentice-Hall, 1995
Buku Teks