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ISSN 2303-1751. Tersedia pada: &lt;<a href="https://ojs.unud.ac.id/index.php/mtk/article/view/30824" target="_new">https://ojs.unud.ac.id/index.php/mtk/article/view/30824</a>&gt;. Tanggal Akses: 15 oct. 2025
doi: <a href="https://doi.org/10.24843/MTK.2017.v06.i02.p158">https://doi.org/10.24843/MTK.2017.v06.i02.p158</a>.