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ArchiveVolume 8, Issue 6, November 2020
Girmay Adhena, Lemessa Oljira
Pages: 96-101     Published Online: Nov. 4, 2020
DOI: 10.11648/j.ajhr.20200806.11        Views 148      Downloads 76
Shulei Ding, Cuihua Liu
Pages: 102-107     Published Online: Nov. 9, 2020
DOI: 10.11648/j.ajhr.20200806.12        Views 124      Downloads 91
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