Nagaraj, Mohanapriya, Divya Senathipathy, Rinurwati, Robiatul Adawiyah, and Ririana Annisatul Lathifah. “Exploring Sigma Coloring Within Lexicographic Products of Innovative Graph Families”. Statistics, Optimization & Information Computing 16, no. 3 (April 14, 2026): 2653–2661. Accessed September 26, 2026. https://iapress.org/index.php/soic/article/view/3306.