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ArchiveVolume 6, Issue 4, December 2020
Shemsedin Abdu Dawud
Pages: 47-51     Published Online: Nov. 19, 2020
DOI: 10.11648/j.ajtab.20200604.11        Views 13      Downloads 9
Amanuel Engidaw
Pages: 52-65     Published Online: Nov. 19, 2020
DOI: 10.11648/j.ajtab.20200604.12        Views 13      Downloads 10
Fusheng Wang, Jieqiong Hu
Pages: 66-71     Published Online: Nov. 19, 2020
DOI: 10.11648/j.ajtab.20200604.13        Views 17      Downloads 19
Urgessa Firomsa Fite
Pages: 72-78     Published Online: Nov. 23, 2020
DOI: 10.11648/j.ajtab.20200604.14        Views 8      Downloads 5
Kanbiro Orkaido, Bekele Youna
Pages: 79-90     Published Online: Nov. 23, 2020
DOI: 10.11648/j.ajtab.20200604.15        Views 6      Downloads 5
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