00401nam a2200157Ia 450000500170000000800410001704100080005808200090006610000420007524500400011725000060015726400330016330000270019665000060022365500140022920260922095434.0260922s9999    xx            000 0 und d  aind  a500.1 aDEPARTEMEN Pendidikan dan Kebudayaan 10aLomba Penelitian Ilmiah Remaja 1985  a1  aJakartabBalai Pustakac1987  a138 hlm.bilus.c21 cm 4a0  aGrade 7-9