Nawaz, M. (2022) “The Effect of Smartphones on the Self-Rated Health Levels of the Elderly: A Cross-Sectional Study in Punjab Province”, Journal of Society of Prevention, Advocacy and Research KEMU, 1(2). Available at: https://journalofspark.com/journal/index.php/JSpark/article/view/28 (Accessed: 23 November 2025).