Vol. 7 No. 2 (2018)
Published:
2018-09-25
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https://doi.org/10.24252/jpm.v7i2.5926 Views: 697 / PDF Downloads: 405
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https://doi.org/10.24252/jpm.v7i2.6171 Views: 546 / PDF Downloads: 196 / PDF Downloads: 0