ArchiveVolume 9, Issue 3, September 2020
Djakba Raphaël, Harouna Massaï, Wangmene Bagamla, Bouba Talami
Pages: 45-51     Published Online: Aug. 17, 2020
DOI: 10.11648/j.ajpc.20200903.11        Views 67      Downloads 34
Gheorghe Duca, Vladislav Blonschi, Viorica Gladchi, Sergey Travin
Pages: 52-61     Published Online: Aug. 19, 2020
DOI: 10.11648/j.ajpc.20200903.12        Views 60      Downloads 32
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