Tristono, Tomi, 		Cahyono, Setiyo, 		Triono, Joko, 		Sidqon, Mochamad, 		Aji, Seno, 		Sudarno, Sudarno, AND 		Junaedi, Nanang.
"THE CONSERVATION NUMBERS IN THE PETRI NET MODEL OF  THREE-PHASE TRAFFIC LIGHTS WITH THE NORWEGIAN SYSTEM" <em>Jurnal Ilmiah Matematika dan Pendidikan Matematika</em> [Online], Volume 17 Number 2 (7 January 2026)