IEEE Press, 1985
Buku Teks
Department of Information Systems and Computer Science , 1991
Buku Teks
Sherwani, Naveed
Kluwer Academic Publishers, 1996
Buku Teks
Hollis, Ernest E.
Prentice-Hall, 1987
Buku Teks
edited by Jose L. Ayala, David Atienza Alonso and Ricardo Reis
Springer-Verlag, 2012
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