1. Adetula, V., Bereketeab, R. and Jaeyebo, O. 2016. Regional Economic Communities and Peace Building in Africa. The Experience of ECOWAS and IGAD (NAI Policy Dialogue, 12). Nordiska Afrikainstitutet.
2. Braack, L., Sandwith, T., Peddle, D. and Petermann, T. 2006. Security Considerations in the Planning and Management of Transboundary Conservation Areas. IUCN. http://www.tbpa.net/docs/pdfs/Securityconsiderationsintransboundary.pdf
3. Burke, J. 2018. Six Virunga Park rangers killed in Democratic Republic of Congo wildlife sanctuary. The Guardian, 10 April. https://www.theguardian.com/weather/2018/apr/09/six-virunga-park-rangers-killed-in-drc-wildlife-sanctuary
4. McNeely, J. A. 2003. Conserving forest biodiversity in times of violent conflict. Oryx, Vol. 32, No. 2. https://www.cambridge.org/core/journals/oryx/article/conserving-forest-biodiversity-in-times-of-violent-conflict/9ECA7FF0F615AB478D3F042FEA5E555A
5. Oso, W. Y. and Onen, D. 2005. A General Guide to Writing Research Proposal and Report. A Handbook for Beginning Researchers. Option Press and Publishers.