1. WHO report on the global tobacco epidemic, 2011: warning about the dangers of tobacco;WH Organization,2011
2. Tobacco use by Indian adolescents;Chadda;Tobac Ind Dis,2002
3. Tobacco and areca nut use in male medical students of Patna;Sinha;Nat Med J India,2001
4. Portrayal of smokeless tobacco in YouTube videos;Bromberg;Nicot Tobac Res,2011
5. Report of the Expert Committee on the Economics of Tobacco Use;ICfM Research,2001