ArchiveVolume 4, Issue 4, December 2019
Omar Ali Dahlan
Pages: 68-71     Published Online: Nov. 13, 2019
DOI: 10.11648/j.allc.20190404.11        Views 231      Downloads 66
Mohammed Raysul Hoque
Pages: 72-76     Published Online: Dec. 10, 2019
DOI: 10.11648/j.allc.20190404.12        Views 209      Downloads 76
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