عثمان س. . Social factors and their impact on volunteer work among youth. Latakia University Journal - Arts and Humanities Sciences Series, [S. l.], v. 43, n. 4, 2021. Disponível em: https://journal.latakia-univ.edu.sy/index.php/humlitr/article/view/10854. Acesso em: 30 jul. 2025.