Shokry Nada , Atef Abd El-hay , Ashraf Elrokh. “Total Cordial Labeling of Corona Product of Paths and Second Power of Fan Graph”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 13, no. 03 (October 14, 2022): 681–690. Accessed May 3, 2024. https://turcomat.org/index.php/turkbilmat/article/view/13097.