Vol. 5 No. 2 (2018)
Published:
2018-12-30
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https://doi.org/10.24252/jis.v5i2.12174 Views: 466 / PDF Downloads: 219
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https://doi.org/10.24252/jis.v5i2.12380 Views: 250 / PDF Downloads: 176
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https://doi.org/10.24252/jis.v5i2.6853 Views: 203 / PDF Downloads: 64