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THE CONSERVATION NUMBERS IN THE PETRI NET MODEL OF  THREE-PHASE TRAFFIC LIGHTS WITH THE NORWEGIAN SYSTEM.
<strong>Jurnal Ilmiah Matematika dan Pendidikan Matematika</strong>, [S.l.], v. 17, n. 2, p. 133-150, jan. 2026.
ISSN 2550-0422.
Available at: &lt;<a href="https://jos.unsoed.ac.id/index.php/jmp/article/view/18067" target="_new">https://jos.unsoed.ac.id/index.php/jmp/article/view/18067</a>&gt;. Date accessed: 17 jan. 2026.
doi: <a href="https://doi.org/10.20884/1.jmp.2025.17.2.18067">https://doi.org/10.20884/1.jmp.2025.17.2.18067</a>.