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ArchiveVolume 8, Issue 4, December 2020
Arturo Leyva
Pages: 81-88     Published Online: Oct. 26, 2020
DOI: 10.11648/j.ajss.20200804.11        Views 64      Downloads 41
Katsunori Fujii, Tohru Ishigaki, Kohsuke Kasuya
Pages: 89-94     Published Online: Oct. 26, 2020
DOI: 10.11648/j.ajss.20200804.12        Views 71      Downloads 26
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