Measuring the ROI of Sales Incentive Programs
        
            Society of Incentive and Travel Executives
      
  
    
  
        
            Other
      
  
    
      
        
            Marketing
      
  
    
      
        
            2004
      
  
    
  "Measuring the ROI of Sales Incentive Programs," Research Report, SITE Foundation, Society of Incentive and Travel Executives, New York, 2004.