“Hosoya Polynomial, Wiener Index, Coloring and Planar of Annihilator Graph of Zn”. AL-Rafidain Journal of Computer Sciences and Mathematics 14, no. 2 (December 15, 2020): 41–52. Accessed June 25, 2026. https://csmj.uomosul.edu.iq/index.php/csmj/article/view/36759.