Vol. 13 No. 1 (2012)
Published:
2015-04-02
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https://doi.org/10.24252/jdt.v13i1.292 Views: 15688 / PDF Downloads: 2130
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https://doi.org/10.24252/jdt.v13i1.294 Views: 2019 / PDF Downloads: 611
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https://doi.org/10.24252/jdt.v13i1.300 Views: 30086 / PDF Downloads: 16739