na INLIS000000000003821 20130515140837 ind 979-781-034-8 0010-051300000003821 ind 001.424 001.424 Aminudin, Prinsip-prinsip Riset Operasional / editor, Lemeda, Simarmata Cetakan : 1 Jakarta Erlangga 2005 ix, 198 hlm. ;24 cm. 196 Riset Operasional