Open Access Library Journal
Vol.3 No.3(2016), Paper ID 69140, 15 pages
DOI:10.4236/oalib.1102566
Quality Microeconomics
Jiancheng Liu
Dongfang Boiler Co., Ltd., Zigong, China
Copyright © 2016 Jiancheng Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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