DOI: https://doi.org/10.17509/gea.v18i1.8405.g6813
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Copyright (c) 2018 Siti Dahlia, Tricahyono Nurharsono, Wira Fazri Rosyidin
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.