00444     2200157   4500001002100000005001700021006001900038008004100057035002400098084001300122100002500135245006900160260002000229650002000249990001700269INLIS00000000000346820150422101827.0a           ||| | 170609|                      ||| |      $a 0010-011500000001471$a 530 RED a$a Editor: redaksi arema$a apa dan mengapa ? $b 200 tanya jawab mengenai Bumi & Alam semesta$a Jakarta $b Arena$a pengetahuan Alam$a 2430/bel/2002