Saxena, Vartika, et al. “PREVALENCE OF RISK-FACTORS OF NON-COMMUNICABLE DISEASES IN RURAL POPULATION OF BLOCK DOIWALA DEHRADUN”. Indian Journal of Community Health, vol. 23, no. 2, Dec. 2011, pp. 65-68, http://iapsmupuk.org/journal/index.php/IJCH/article/view/193.