Team, S. (2022). On k-Super Graceful Labeling of Graphs: Gee-Choon Lau, Wai-Chee Shiu, Ho-Kuen Ng. Thai Journal of Mathematics, 20(3), 1375–1387. Retrieved from https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1405