ArchiveVolume 5, Issue 5, October 2017
Alioune Aidara Diouf, Bassirou Lo, Abel Sambou, Oumar Sakho, Aboubaker Chedikh Beye
Pages: 50-54     Published Online: Dec. 18, 2017
DOI: 10.11648/j.ajop.20170505.11        Views 1751      Downloads 46
Yilkal Dessie Sintayehu, Abebe Belay Gemeta, Solomon Girmay Berehe
Pages: 55-58     Published Online: Dec. 19, 2017
DOI: 10.11648/j.ajop.20170505.12        Views 2753      Downloads 117
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