Rinurwati, Rinurwati, Mohana Priya, Divya S, Robiatul Adawiyah, and Ririana Annisatul Lathifah. “Exploring Sigma Coloring Within Lexicographic Products of Innovative Graph Families”. Statistics, Optimization & Information Computing (April 14, 2026). Accessed April 25, 2026. http://47.88.85.238/index.php/soic/article/view/3306.