ArchiveVolume 7, Issue 1, February 2019
Shijun Fu
Pages: 1-13     Published Online: Apr. 1, 2019
DOI: 10.11648/j.ijema.20190701.11        Views 62      Downloads 274
Wang Bing, Wang Wei
Pages: 14-21     Published Online: Apr. 28, 2019
DOI: 10.11648/j.ijema.20190701.12        Views 30      Downloads 16
Xiaotao Huang, Geping Luo, Hao Wang, Jean Baptiste Nsengiyumva
Pages: 22-26     Published Online: May 23, 2019
DOI: 10.11648/j.ijema.20190701.13        Views 2      Downloads 1
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