Amanathulla S, Bera B, Pal M. L(2,1,1)-Labeling of Circular-Arc Graphs. J. Sci. Res. [Internet]. 2021 May 1 [cited 2026 Mar. 12];13(2):537-44. Available from: https://www.banglajol.info/index.php/JSR/article/view/50483