00557nam a2200193 k 4500001001300000005001500013008004100028020003000069049003900099052001500138056001300153082001400166245005700180260003000237300002600267653001900293700004100312950001000353KMO20023182720180612140514021209s2002    ulka          000   kor    a8986607190g03410:c\80000 lEM2696642lEM2696643c2lJE1412c301a410.4b2-8  a410.4240 a510.222100a원리를 알면 수학이 쉽다/d송은영 지음  a서울:b맑은창,c2002  a251p.:b삽도;c23cm  a원리a수학1 a송은영,d1964-0KAC2012246914aut0 b\8000