Grace, Nicci, and Samia R. Toukhsati. “Psychosocial Functioning in the Elderly: An Assessment of Self-Concept and Depression”. International Journal of Psychological Research 7, no. 1 (January 1, 2014): 12–18. Accessed April 25, 2024. https://revistas.usb.edu.co/index.php/IJPR/article/view/663.