ArchiveVolume 6, Issue 3, June 2017
Lidija Romic
Pages: 30-37     Published Online: Jun. 23, 2017
DOI: 10.11648/j.eco.20170603.11        Views 1874      Downloads 112
Noneng Masitoh, Irman Firmansyah
Pages: 38-43     Published Online: Aug. 10, 2017
DOI: 10.11648/j.eco.20170603.12        Views 1663      Downloads 91
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