Mahajan, Harsh, Shalini Srivastava, and S. Nagesh. 2017. “Immunization Coverage in an Urban Resettlement Colony of District Gautam-Budh Nagar, Uttar Pradesh, India Using WHO 30×7 Cluster Sampling Technique”. International Journal Of Community Medicine And Public Health 4 (11):4089-95. https://doi.org/10.18203/2394-6040.ijcmph20174660.