Pragash, D. S., U. Shekar, V. Rayapu, and M. K. “OCCURRENCE OF HEPATITIS A VIRUS AMONG CHILDREN IN A SEMI-URBAN TERTIARY CARE INSTITUTE, TAMILNADU”. International Research Journal of Pharmaceutical and Applied Sciences, Vol. 3, no. 4, Aug. 2013, pp. 119-21, https://scienztech.org/index.php/irjpas/article/view/581.