Luger, George F., author
The Benjamin/Cummings , 1989
Buku Teks
Clark, K.L., author
Prentice-Hall, 1984
Buku Teks
Morgan Kaufmann, 1986
Buku Teks
by Robert K. Lindsay [and others]
McGraw-Hill, 1980
Buku Teks
Charniak, Eugene, author
Lawrence Erlbaum Associates, 1980
Buku Teks