煤企纵向一体化程度与投资效率研究--地方政府规制视角
Publisher: 国家哲学社会科学学术期刊数据库
E-ISSN: 1004-5937|volume|22|36-40
ISSN: 1004-5937
Source: 会计之友, Vol.volume, Iss.22, 2015-01, pp. : 36-40
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Abstract