, M. B. , K. . E. J. R. “On Multiplicative Harmonic Index, Multiplicative ISI Index and Multiplicative F Index of TUC_4 C_8 [m,n] and TUC_4 [m,n] Nanotubes”. International Journal on Recent Trends in Life Science and Mathematics, vol. 4, no. 9, Sept. 2017, pp. 01-08, https://www.ijlsm.org/index.php/ijlsm/article/view/111.