ArchiveVolume 4, Issue 2, June 2020
Sudi Dawud, Degefa Negessa, Kassahun Lemi, Dereje Tsegaye
Pages: 17-23     Published Online: Jun. 28, 2020
DOI: 10.11648/j.ijast.20200402.11        Views 19      Downloads 6
Sale Wandara, Mekonnen Yirga, Tekleyohannes Berhanu
Pages: 24-32     Published Online: Jun. 28, 2020
DOI: 10.11648/j.ijast.20200402.12        Views 16      Downloads 14
Deginet Hailemeskel
Pages: 33-49     Published Online: Jun. 28, 2020
DOI: 10.11648/j.ijast.20200402.13        Views 19      Downloads 6
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