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008			160221b sy||||| |||| 00| 0 eng d
082			_a300
100			_aWalker، Gordon. _932705
245			_aModern Competitive Starategy/ _cGordon Walker.
260			_aMc Graw Hill: _bMc Graw Hill، _c2004.
300			_a290ص، _c24سم.
650			_a Social sciences. _92460
942			_2ddc _cBK
999			_c291191 _d291191