na INLIS000000000043740 20161117101918.0 $a 0-471-32816-2 $0010-111600000002763 $a 520. VAN a C.2 $a John Wiley $a A+ Projects Projects In Astronomy : Winning Exprements For Science Fairs And Extra Credit $b Winning Exprements For Science Fairs And Extra Credit $a Ke-1 $a Bandung $b Pakar Raya $c 2004 $a Arpus kab. Magetan $a 31.224-0