Cooper WW, KS Park and JT Pastor (1999). “Ram: A Range Adjusted Measure of Inefficiency for Use with Additive Models, and Relations to Other Models and Measures in DEA.” JPA 11(1): 5-42.

Cooper WW, KS Park and G Yu (2001). “Idea (Imprecise Data Envelopment Analysis) with CMDS (Column Maximum Decision Making Units).” JORS 52(2): 176-181.

Cooper WW, LM Seifor and K Tone (1999). A Comprehensive Text with Models, Applications, References and DEA-Solver Software. Boston, USA, Kluwer.

Cooper WW, LM Seiford, E Thanassoulis and SH Zanakis (2004). ?DEA and its Uses in Different Countries.” EJOR 154(2): 337-344.

Cooper WW, LM Seiford and K Tone (2005). Introduction to Data Envelopment Analysis and its Uses: With DEA-Solver Software and References, Springer.

Cooper WW, LM Seiford and J Zhu (2004). Handbook on Data Envelopment Analysis, Kluwer Academic.

Cooper WW, KK Sinha and RS Sullivan (1995). “Accounting for Complexity in Costing High Technology Manufacturing.” EJOR 85(2): 316-326.

Cooper WW, KK Sinha and RS Sullivan (1996). “Evaluating the Information Content of a Measure of Plant Output: An Application to High-Technology Manufacturing.” Ann Oper Res 68: 329-360.

Cooper WW, RG Thompson and RM Thrall (1996). “Extensions and New Developments in Data Envelopment Analysis – Preface.” Ann Oper Res 6: U11-U11.

Cooper WW, RG Thompson and RM Thrall (1996). “Introduction: Extensions and New Developments in DEA.” Ann Oper Res 66: 3-45.