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ISSN 2303-1751. Available at: &lt;<a href="https://ojs.unud.ac.id/index.php/mtk/article/view/25402" target="_new">https://ojs.unud.ac.id/index.php/mtk/article/view/25402</a>&gt;. Date accessed: 26 jan. 2025.
doi: <a href="https://doi.org/10.24843/MTK.2016.v05.i04.p140">https://doi.org/10.24843/MTK.2016.v05.i04.p140</a>.