Nguyen Hieu

igcse vietnam economics business terminology vocabulary science ais mass capacity temperature experiment heat physics specific indirecttax complementarygoods exam cambridge disposaldemand equilibrium effectivedemand excesssupply normalgoods marketdemand subsidy demand substotutes marketdemandcurve england ifferiorgoods marketfailure privatesector economy publicsector marketeconomicsystem monopoly economicsystem mixedeconomicsystem profit market barter plannedeconomicsystem resourceallocation education book vns earthquake unknown report metal time heatenergy specificheatcapacity heat energy water oil