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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: 316 , PDF downloads: 387 -
DOI : https://doi.org/10.31539/spej.v4i2.2274
Abstract views: 95 , PDF downloads: 108 -
DOI : https://doi.org/10.31539/spej.v4i2.2388
Abstract views: 307 , PDF downloads: 386 -
DOI : https://doi.org/10.31539/spej.v4i2.2392
Abstract views: 83 , PDF downloads: 78 -
DOI : https://doi.org/10.31539/spej.v4i2.2422
Abstract views: 31 , PDF downloads: 29