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<strong>Jurnal Matematika</strong>, [S.l.], v. 1, n. 2, nov. 2012.
ISSN 2655-0016.
Tersedia pada: &lt;<a href="https://ojs.unud.ac.id/index.php/jmat/article/view/2896" target="_new">https://ojs.unud.ac.id/index.php/jmat/article/view/2896</a>&gt;. Tanggal Akses: 25 sep. 2026
doi: <a href="https://doi.org/10.24843/JMAT.2011.v01.i02.p12">https://doi.org/10.24843/JMAT.2011.v01.i02.p12</a>.