00546     2200205   4500001002100000005001500021008004100036020001400077035001900091041000700110082001600117090002200133100001900155700002100174245003300195250001200228260004600240300002500286650002900311INLIS00000000001074320210426121755210426|||||||||   |   |||   |||| ||   |   a637182274  0010-0421010743  aid0 a330.101.542  a330.101.542 RUF p0 aRUFFIN, Roy J.0 aGREGORY, Paul R.00aPrinciples of microeconomics  a2nd.ed.  aLondonbScott, Foresman and Companyc1986  axxix,508p;ills; 25cm 0aEkonomi -- Ekonomi mikro