Wadhera, J., and V. Dudhmal. “Visual Evoked Potential (VEP): Comparative Study of Physiological Variation in Children below 5 Years and Adults Beyond 50 Years”. International Journal of Medical Research and Review, Vol. 3, no. 4, May 2015, pp. 378-84, doi:10.17511/ijmrr.2015.i4.071.