Upadhyay, Kanhaiya Lal, Renu Agrawal, and Geetu Singh. “Determinants of Cognitive Impairment in Elderly Population Residing in Agra, Uttar Pradesh”. Indian Journal of Community Health 37, no. 2 (April 30, 2025): 265–269. Accessed December 15, 2025. https://www.iapsmupuk.org/journal/index.php/IJCH/article/view/3175.