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- Church, Jim. Library Guides: Non Governmental Organizations (NGOs): The Environment. 24 Aug. 2021, https://guides.lib.berkeley.edu/c.php?g=496970&p=3427176.
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- Razan Al Mubarak and Tanzeed Alam. “The Role of NGOs in Tackling Environmental Issues”. Middle East Institute, Apr. 2011, https://www.mei.edu/publications/role-ngos-tackling-environmental-issues.