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DOI : https://doi.org/10.31539/spej.v3i1.793
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DOI : https://doi.org/10.31539/spej.v3i1.991
Abstract views: 438 , pdf downloads: 422 -
DOI : https://doi.org/10.31539/spej.v3i1.944
Abstract views: 141 , pdf downloads: 179 -
DOI : https://doi.org/10.31539/spej.v3i1.928
Abstract views: 143 , pdf downloads: 204 -
DOI : https://doi.org/10.31539/spej.v3i1.915
Abstract views: 287 , pdf downloads: 885