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| 2018, Vol. 25(6): 31-37 DOI: | ||
| Oil and Gas Policies in the World's Major Countries | ||
| Kang Yu1, Chen Jianrong1, Huang Liwei2 | ||
| 1. CNPC Economics and Technology Research Institute; 2. CNPC Safety and Environmental Protection Research Institute |
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| Received null Revised null | ||
| Supporting info | ||
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