Irawan, Agus, and Asmiati Asmiati. “THE LOCATING-CHROMATIC NUMBER FOR CERTAIN BARBELL OPERATION ON PIZZA GRAPH AND ITS SUBDIVISION”. Jurnal Matematika UNAND 14, no. 3 (July 31, 2025): 293–303. Accessed November 4, 2026. https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/1307.