Gupta, S. P., K. Yadav, R. Ghimire, R. Khanal, and L. K. Jha. 2021. “Study of Alpha Particle Impact Double Ionization Cross Sections of Cu Atom”. Journal of Nepal Physical Society 7 (4):43-51. https://doi.org/10.3126/jnphyssoc.v7i4.42930.