G. Subashini, K. Ramanathan and K. Manimekalai (2018) “Square Sum Labeling for Pyramid Graph and Hanging Pyramid Graph”, International Journal of Mathematics And its Applications, 6(1 (Special Issue), pp. 97–102. Available at: https://ijmaa.in/index.php/ijmaa/article/view/1401 (Accessed: 22 July 2024).