Vol. 6 No. 2 (2018): September
Published:
2018-08-07
Articles
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https://doi.org/10.24252/jpf.v6i2.5595 Views: 2831 / PDF Downloads: 2747
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https://doi.org/10.24252/jpf.v6i2.5526 Views: 476 / PDF Downloads: 223