Singh, Ranjana, et al. “A Cross- Sectional Study on Prevalence of Hypertension and Its Relationship With Selected Demographic Factors in Western Uttar Pradesh”. Indian Journal of Community Health, vol. 26, no. 1, Mar. 2014, pp. 10-14, http://iapsmupuk.org/journal/index.php/IJCH/article/view/365.