ArchiveVolume 5, Issue 4, December 2019
Evgeniy Bryndin
Pages: 66-72     Published Online: Dec. 31, 2019
DOI: 10.11648/j.ijdst.20190504.11        Views 141      Downloads 37
Hashnayne Ahmed, Shek Ahmed
Pages: 73-82     Published Online: Dec. 31, 2019
DOI: 10.11648/j.ijdst.20190504.12        Views 139      Downloads 56
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