Keller, R. (1987). Expert system technology: Development and application. Prentice-Hall.
Chicago-viite (17. p.)Keller, Robert. Expert System Technology: Development and Application. Englewood Cliffs, NJ: Prentice-Hall, 1987.
MLA-viite (9. p.)Keller, Robert. Expert System Technology: Development and Application. Prentice-Hall, 1987.
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