ArchiveVolume 3, Issue 3, June 2014
Lyudmila Perepechko
Pages: 21-24     Published Online: Jul. 30, 2014
DOI: 10.11648/j.jwer.20140303.11        Views 2503      Downloads 139
Manamba Epaphra
Pages: 25-36     Published Online: Aug. 10, 2014
DOI: 10.11648/j.jwer.20140303.12        Views 2486      Downloads 157
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