By Wang Zhenquan   Wang Shouyang   Huang Tonghua   in Applied Economics Letters

ISSN:1466-4291|16|9|971-976

Routledge Ltd‎(2009)‎

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By Wang Shouyang   Wang Zhenquan   Zhang Jing   in Applied Economics Letters

ISSN:1466-4291|10|3|185-190

Routledge Ltd‎(2003)‎

Access to resources Favorite 10.372606