PUTU ARI UTARI, Ida Ayu.
 Kontrol Optimal Upaya Pengobatan Penyakit Campak Menggunakan Model Endemi SIR.
<strong>Jurnal Matematika</strong>, [S.l.], v. 9, n. 2, p. 94-100, dec. 2019.
ISSN 2655-0016.
Available at: &lt;<a href="https://ojs.unud.ac.id/index.php/jmat/article/view/55829" target="_new">https://ojs.unud.ac.id/index.php/jmat/article/view/55829</a>&gt;. Date accessed: 20 apr. 2024.
doi: <a href="https://doi.org/10.24843/JMAT.2019.v09.i02.p115">https://doi.org/10.24843/JMAT.2019.v09.i02.p115</a>.