Muche, Tilahun, and Sanaa Martin. “THE FIRST AND SECOND ZAGREB INDICES TO MOLECULAR GRAPHS OF ALKANES, C_n H_((2n+2) )”. IJRDO -JOURNAL OF MATHEMATICS 9, no. 7 (July 5, 2023): 1-8. Accessed December 22, 2024. http://webdisk.ijrdo.org/index.php/m/article/view/5746.