shrestha,Nirakar Man. (2008). Non communicable diseases risk factor survey, 2008: WHO steps Surveillance.
Chicago-viite (17. p.)shrestha,Nirakar Man. Non Communicable Diseases Risk Factor Survey, 2008: WHO Steps Surveillance. 2008.
MLA-viite (8. p.)shrestha,Nirakar Man. Non Communicable Diseases Risk Factor Survey, 2008: WHO Steps Surveillance. 2008.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.