D. K. Mahyavanshi, S. S. Nagar, M. G. Patel, S. S. Nagar, S. K. Purani, and G. P. Kartha, “Evaluation of immunization coverage among children aged 12-23 months in Surendranagar city”, Int J Basic Clin Pharmacol, vol. 2, no. 3, pp. 286–289, Jan. 2017.