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ArchiveVolume 9, Issue 6, December 2020
Fekadu Tadege Kobe
Pages: 101-108     Published Online: Nov. 11, 2020
DOI: 10.11648/j.pamj.20200906.11        Views 140      Downloads 85
Molalegn Ayana, Tsige Hailegiorgis, Kassahun Getnet
Pages: 109-117     Published Online: Nov. 23, 2020
DOI: 10.11648/j.pamj.20200906.12        Views 97      Downloads 87
Wenbo Wang, Wei Zhang, Yongkun Li
Pages: 118-123     Published Online: Dec. 4, 2020
DOI: 10.11648/j.pamj.20200906.13        Views 89      Downloads 65
Awogbemi Clement Adeyeye
Pages: 124-128     Published Online: Dec. 16, 2020
DOI: 10.11648/j.pamj.20200906.14        Views 60      Downloads 41
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