Vol. 2 No. 1 (2012)
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https://doi.org/10.24252/jpm.v2i1.758 Views: 1863 / PDF Downloads: 1138
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https://doi.org/10.24252/jpm.v2i1.749 Views: 5608 / PDF Downloads: 3701
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https://doi.org/10.24252/jpm.v2i1.748 Views: 518 / PDF Downloads: 760
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https://doi.org/10.24252/jpm.v2i1.747 Views: 1526 / PDF Downloads: 1813