References

1. Inman, D. J. (2014). Engineering vibration (4th ed.). Pearson Education.
2. P. Muliya, A. Kachhadiya, J. Haranesha, and G. Tejani, "An experimental investigation on the natural frequency of free undamped, damped, and forced damped vibrations," in Proc. Int. Conf. on Research & Entrepreneurship (ICRE), 2016. [Online]. Available: https://www.researchgate.net/publication/299597415