A. Antony mary, A., A. Amutha, and M. S. Franklin Thamil Selvi. “A Study on Slope Number of Certain Classes of Bipartite Graphs”. International Journal of Engineering & Technology 7, no. 4.10 (October 2, 2018): 440–442. Accessed May 3, 2024. https://sciencepubco.com/index.php/ijet/article/view/21036.