00377nam a2200157Ia 450000500170000000800410001704100080005808200110006610000180007724500490009525000060014426400330015030000160018365000060019965500140020520260922095433.0260922s9999    xx            000 0 und d  aind  a330.071 aWidiarto, Tri10aIlmu Pengetahuan Sosial Ekonomi 1 SLTP Kls 1  a3  aJakartabBalai Pustakac2002  a- hlm.c cm 4a0  aGrade 7-9