Mahajan, H., Srivastava, S. and Nagesh, S. (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), pp. 4089–4095. doi: 10.18203/2394-6040.ijcmph20174660.