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Copyrighted by http://journal.um-surabaya.ac.id/index.php/Agregat
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ISSN 2541-0318
The use of articles published by this journal is governed by the Creative Commons Attribution license as currently displayed on CC BY 4.0
Copyrighted by http://journal.um-surabaya.ac.id/index.php/Agregat
ISSN 2541-0318