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Copyright (c) 2022 Sari Farah Dina, Justaman Arifin Karo karo, Siti Masriani Rambe, Edwin Harianto Sipahutar, Harry Parulian Limbong

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.