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DOI : https://doi.org/10.31539/spej.v3i1.990
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DOI : https://doi.org/10.31539/spej.v3i2.992
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DOI : https://doi.org/10.31539/spej.v3i2.1190
Abstract views: 49 , pdf downloads: 64 -
DOI : https://doi.org/10.31539/spej.v3i2.1297
Abstract views: 68 , pdf downloads: 152 -
DOI : https://doi.org/10.31539/spej.v3i2.1151
Abstract views: 94 , pdf downloads: 185