Sk Amanathulla, Biswajit Bera, Madhumangal Pal. \text { Surjective } L(3,1) \text {-labeling of circular-arc graphs }. Malaya J. Mat. [Internet]. 2021 Jan. 1 [cited 2024 Jul. 16];9(01):925-9. Available from: https://www.malayajournal.org/index.php/mjm/article/view/1198