ArchiveVolume 2, Issue 2, June 2017
Mohammed H. Al Aqad
Pages: 34-39     Published Online: Apr. 11, 2017
DOI: 10.11648/j.allc.20170202.11        Views 1452      Downloads 82
Lahcene Benyagoub
Pages: 40-48     Published Online: Apr. 24, 2017
DOI: 10.11648/j.allc.20170202.12        Views 1366      Downloads 81
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