E., V., S., D. P., C., S., E., H. R., Shewade, H. D. and Lal, P. (2017) “An efficient method to conduct large population survey in a low resource setting: Tamil Nadu tobacco survey”, International Journal Of Community Medicine And Public Health, 4(12), pp. 4495–4506. doi: 10.18203/2394-6040.ijcmph20175320.