Pakpahan, Regina, Patricia Runtu, and Meidy Kuron. “BEBERAPA ALGORITMA PELABELAN GRACEFUL UNTUK GRAF CATERPILLAR”. SOSCIED 6, no. 1 (July 31, 2023): 296-302. Accessed August 31, 2025. https://poltekstpaul.ac.id/jurnal/index.php/jsoscied/article/view/690.