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{\Large\bf Abstract}\\
Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. 

Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. 

Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. Data envelopment analysis is a mathematical programming approach to measuring the efficiency of decision making units. 


{\large\bf Keywords:} 
Data Envelopment Analysis, Decision making Units, Efficiency


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