1. UNEP. (2016). Protected planet report 2016. Retrieved from April 27, 2020 from https://www.protectedplanet.net/c/protected-planet-report-2016/protected-planet-report-2016-data-maps-figures
2. UNEP. (2009). United Nations Environment Programme and Development Alternatives (2008). South Asia Environment Outlook 2009. UNEP, SAARC and DA. 136p. Retrieved January 20, 2021 from https://wedocs.unep.org/handle/20.500.11822/8004
3. Gizachew, B., Rizzi, J., Shirima, D. D., & Zahabu, E. (2020). Deforestation and connectivity among protected areas of Tanzania. Forests, 11(2), 170.
4. Sanderson, E. W., Forrest, J., Loucks, C., Ginsberg, J., Dinerstein, E., Seidensticker, J., Leimgruber, P., Songer, M., Heydlauff, A., O’Brien, T., & Bryja, G. (2006) Setting priorities for the conservation and recovery of Wild Tigers: 2005–2015. The Technical Assessment. Wildlife Conservation Society, World Wildlife Fund, Smithsonian Institution, and National Fish and Wildlife Foundation-Save the Tiger Fund, New York and Washington, D.C. 206 p.
5. Joshi, A. R., Dinerstein, E., Wikramanayake, E., Anderson, M. L., Olson, D., Jones, B. S., Seidensticker, J., Lumpkin, S., Hansen, M. C., Sizer, N. C., Davis, C. L., Palminteri, S., & Hahn, N. R. (2016). Tracking changes and preventing loss in critical tiger habitat. Science Advances, 2(4), e1501675.