C., V., S. B, R. Reddy B, R. M., S. S., and G. K.M. “Physical Characteristics of Photon and Electron Beams from a Radiotherapy Accelerator”. International Journal of Medical Research and Review, Vol. 4, no. 7, July 2016, pp. 1178-8, doi:10.17511/ijmrr.2016.i07.18.