煤炭行业上市公司经营效率的动态研究

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1674-327x|19|1|42-44

ISSN: 1674-327x

Source: 辽宁工业大学学报:社会科学版, Vol.19, Iss.1, 2017-01, pp. : 42-44

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Abstract