ARPEN, Inti et al.
 Analisis Regresi Cox Proportional Hazard Untuk Menentukan Faktor-Faktor yang Memengaruhi  Lama Studi Mahasiswa.
<strong>Jurnal Matematika</strong>, [S.l.], v. 11, n. 1, p. 20-33, july 2021.
ISSN 2655-0016.
Available at: &lt;<a href="https://ojs.unud.ac.id/index.php/jmat/article/view/69360" target="_new">https://ojs.unud.ac.id/index.php/jmat/article/view/69360</a>&gt;. Date accessed: 15 july 2025.
doi: <a href="https://doi.org/10.24843/JMAT.2021.v11.i01.p133">https://doi.org/10.24843/JMAT.2021.v11.i01.p133</a>.