معلا ف. .; أسامة محمد. The role of NGOs in protecting the environment from the point of view of their employees . Tishreen University Journal- Arts and Humanities Sciences Series, [S. l.], v. 44, n. 4, p. 223–244, 2022. Disponível em: https://journal.tishreen.edu.sy/index.php/humlitr/article/view/12346. Acesso em: 22 jul. 2024.