босоо галзуу тээрэм magotteaux
mtw175 галзуу тээрэм by sbm china. The evaluation of energy–environmental efficiency of … · SBM model and Super-SBM model. The DEA model for evaluating the efficiency of decision-making units (DMUs) was firstly raised by Charnes, Cooper and Rhodes in 1978, and then many different types of DEA models were developed and utilized by different …