S. K. Vaidya, and D. D. Bantva. “Radio Number for Strong Product \(P_2 \otimes P_n\)”.
Malaya Journal of Matematik
1, no. 02 (April 1, 2013): 29–36. Accessed April 8, 2025. https://www.malayajournal.org/index.php/mjm/article/view/347.