P. Devie Abirami, A Pradeep, M. Akhilesh, and S. Santhosh Kumar. “Picture Fuzzy Graceful Labeling For Some Graphs”. Journal of Computational Analysis and Applications (JoCAAA) 33, no. 05 (September 18, 2024): 541–548. Accessed September 27, 2024. http://eudoxuspress.com/index.php/pub/article/view/568.