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Dyfyniad Arddull ChicagoSharma ,J.K. Operations Research, Theory and Applications/3e. 3rd ed. Delhi: Macmillan, 2007.
Dyfyniad MLASharma ,J.K. Operations Research, Theory and Applications/3e. 3rd ed. Macmillan, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.