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DOI : https://doi.org/10.31539/spej.v4i2.1885
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DOI : https://doi.org/10.31539/spej.v4i2.1899
Abstract views: 342 , PDF downloads: 412 -
DOI : https://doi.org/10.31539/spej.v4i2.2274
Abstract views: 99 , PDF downloads: 116 -
DOI : https://doi.org/10.31539/spej.v4i2.2388
Abstract views: 313 , PDF downloads: 405 -
DOI : https://doi.org/10.31539/spej.v4i2.2392
Abstract views: 85 , PDF downloads: 83 -
DOI : https://doi.org/10.31539/spej.v4i2.2422
Abstract views: 34 , PDF downloads: 35