ArchiveVolume 4, Issue 2, April 2019
Shihab Ali Khalifa, Doha Yahia Alsadig
Pages: 34-40     Published Online: May 26, 2019
DOI: 10.11648/j.aas.20190402.11        Views 26      Downloads 7
Paiguy Armand Ngouateu Wouagfack, Ariane Laurelle Ngankou, Noël Djongyang, Réné Tchinda
Pages: 41-51     Published Online: May 26, 2019
DOI: 10.11648/j.aas.20190402.12        Views 25      Downloads 5
Tasisa Temesgen
Pages: 52-58     Published Online: May 31, 2019
DOI: 10.11648/j.aas.20190402.13        Views 19      Downloads 5
Abdulbasit Nasir
Pages: 59-71     Published Online: Jun. 12, 2019
DOI: 10.11648/j.aas.20190402.14        Views 10      Downloads 6
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