na INLIS000000000014251 20140317134151.0 a ||| | 170530| ||| | $a 979-002-515-8 $a 0010-031400000001549 $a 639.31 $a 24 $a 639.31 SAR b C.2 $a B. Sarwono $a Budi Daya Belut dan Sidat $a ke-1 $a Jakarta $b PT. Penebar Swadaya $c 2011 $a ARPUS KAB. Magetan $a 49.808-0