4Cox B L, Jantti M H. Capturing Business Intelligence Required for Targeted Marketing, Demonstrating Value, and Driving Process Improvement[J].Library&Information Science Research, 2012,34(4): 308-316.
5Mclntosh C R. Library Return on Investment: Defending the Contingent Valuation Method for Public Benefits Estimation[J]. Library&Information Science Research, 2013,35(2): 117-126.