Kumari, Rashmi, Deepika Dewan, Bhavna Langer, Rajiv Kumar Gupta, Parveen Singh, and Anuradha. 2018. “Quality of Life and Its Associated Factors: A Comparative Study Among Rural and Urban Elderly Population of North India”. National Journal of Community Medicine 9 (06):420-25. https://www.njcmindia.com/index.php/file/article/view/733.