6Coelli, T J :A Guide to FRONTIER Version 4.1 : a Computer Program for Stochastic Frontier Production and Cost Function Estimation, CEPA Working Paper 96/07, University of New England, Australia,1996.
7Lovell, C A K, S Richardson, P Travers and L L Wood:Resources and Functioning : a New View of Inequality in Australia, Department of Econcmaics, University of North Carolina, Working Paper series, 1990.
8Groe, skopf, S K Hayes, L Taylor and W Weber:Budget Constrained Frontier Measures of Fiscal Equality and Efficiency in Schooling, Review of Economics and Statistics, 1996.
9Yin, R and W F Hyde: Trees as an Agriculture Sustaining Activity: the Case of Northern China, Agroforestry Systems, 2000.
10Yin, R and Q He: The Spatial and Temporal Effects of Paulownia Imercropping: the Case of North China, Agroforestry Systems,1997.