Addison-Wesley, 1986
Buku Teks
North Holland, 1989
Buku Teks
Walker, Terry, author
The S. Klien News Letter, 1986
Buku Teks
Alty, J.L., author
NCC Publications, 1984
Buku Teks
edited by, Frederick Hayes-Roth, Donald A. Waterman and Douglas Lenat
Addison-Wesley, 1983
Buku Teks