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Dyfyniad Arddull ChicagoA. Ravindran. Operations Research: Principles and Practice. New York: John Wiley & Sons, 2000.
Dyfyniad MLAA. Ravindran. Operations Research: Principles and Practice. New York: John Wiley & Sons, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.