Vyas, D. S., and D. H. Nayak. “A Study Of The Prevalence, Pattern And Health Effects Of Passive Smoking In A Slum Area Of Ahmedabad City: A Study Of Passive Smoking in Slum Area”. National Journal of Integrated Research in Medicine, vol. 3, no. 3, Aug. 2012, pp. 81-85, doi:10.70284/njirm.v3i3.2043.