na INLIS000000000017551 20140421065648.0 a ||| | 170530| ||| | $a 979-420-575-3 $a 0010-041400000001751 $a 660.2 $a 660.2 PUR p C.2 $a Suryo Purwono $a Pengantar Operasi Stage Seimbang $a ke-1 $a Yogyakarta $b Gadjah Mada University Press $c 2005 $a ARPUS KAB. Magetan $a 24.508-0