معلا فراس, and 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 44, no. 4 (September 5, 2022): 223–244. Accessed July 3, 2024. https://journal.tishreen.edu.sy/index.php/humlitr/article/view/12346.