UNDERSTANDING THE ENGAGEMENT PATTERNS OF SENIOR CITIZENS WITH SMARTPHONE: A CASE STUDY OF ISLAMABAD PAKISTAN. Pakistan Journal of Social Research, [S. l.], v. 3, n. 01, p. 48–56, 2021. DOI: 10.52567/pjsr.v3i01.186. Disponível em: https://ojs.pjsr.com.pk/index.php/PJSR/article/view/186. Acesso em: 27 jul. 2025.