5McKinnon, R. I.(1993), "The Order of Economic Liberalization: Financial Control in the Transition to a Market Economy", 2^nd Ed, Baltimore: Johns Hopkins University Press.
6Miler M. H. & D. Orr (1966), "A Model of the Demand for Money by Firms" , Quarterly Journal of Economics, 80,414-435.
7Williamson J.(1994), "Estimating Equilibrium Exchange Rates" ,Institute of International Economics, Washington DC.
