Parmar, A., Kartha, G., & Baria, M. (2017). A study on the prevalence of refractive errors among school children of 10-16 years in Surendranagar district, Gujarat. International Journal Of Community Medicine And Public Health, 4(9), 3376–3379. https://doi.org/10.18203/2394-6040.ijcmph20173848