00447     2200193   4500001002100000005001500021035002000036008004100056245002300097100001500120250000600135260003000141300002300171084001400194082000800208650001500216990001100231990001100242INLIS00000000000011720211217100138  a0010-0521000117211217                           0 ind  1 aMatematika Ekonomi1 aSitorus, T  aV  aBandung :bTarsito,c1987  a255 hlm. ;c21 cm.  a510 SIT m  a510 4aMatematika  a016565  a016024