Sya’diyah Z. KESTABILAN MODEL PETRI NET DARI SISTEM PEMBAYARAN TAGIHAN LISTRIK PT. PLN (Persero) RAYON AMBON TIMUR. BAREKENG: J. Math. & App. [Internet]. 1Dec.2021 [cited 19May2024];15(4):601-6. Available from: https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/3232