Marcellus, Daniel H.
Prentice-Hall, 1989
Buku Teks
Negoita, Constantin Virgil
The Benjamin Cumming Pub., 1985
Buku Teks
edited by, Frederick Hayes-Roth, Donald A. Waterman and Douglas Lenat
Addison-Wesley, 1983
Buku Teks
Partridge, D.
McGraw-Hill, 1994
Buku Teks
Shapiro, Alen D.
Addison-Wesley, 1987
Buku Teks