KATLO, K.; TARAWEH, R. The Role of the Elderlyin Enhancing the Feeling of Optimism and Hppiness as Preceived by University Students in Palestine. Jordan Journal of Social Sciences, [S. l.], v. 13, n. 2, 2020. Disponível em: https://archives.ju.edu.jo/index.php/jjss/article/view/107945. Acesso em: 24 feb. 2026.