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Dyfyniad Arddull ChicagoTURBAN, Efraim. Decision Support and Expert Systems: Management Supportsystems. -- 2nd Ed. New York: Macmillan, 1990.
Dyfyniad MLATURBAN, Efraim. Decision Support and Expert Systems: Management Supportsystems. -- 2nd Ed. Macmillan, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.