na INLIS000000000002910 20210426113424 210426||||||||| | ||| |||| || Scott, Foresman and Company 010-0421002910 0 "," Indonesia" Paul R.\" Principles of microeconomics,Text" 637182274 330.101.542\" 1986 xxix,508p;ills; 25cm " Roy J. Ruffin;" Paul R. Gregory""" Ekonomi -- Ekonomi mikro\"