Vol. 1 No. 2 (2021): December
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https://doi.org/10.24252/ijis.v1i2.33473 Views: 452 / PDF Downloads: 159
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https://doi.org/10.24252/ijis.v1i2.32743 Views: 276 / PDF Downloads: 332
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https://doi.org/10.24252/ijis.v1i2.32436 Views: 225 / PDF Downloads: 239