By Haug Alfred   Basher Syed   in Applied Economics

ISSN:1466-4283|43|2|185-196

Routledge Ltd‎(2011)‎

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By Alexander W.   Haug Alfred   Jaforullah Mohammad   in Journal of Productivity Analysis

ISSN:0895-562X|34|2|99-110

Springer Publishing Company ‎(2010)‎

Access to resources Favorite 10.532606