1. Adams, G. F., & Wyckoff, J. (1971). Landforms. Golden Press.
2. Bayliss, T. (1995). A concise advanced geography. Oxford University Press.
3. Bernard, H. R. (2000). Social research methods: Qualitative and quantitative approaches. Sage.
4. Blackstock, K. (2005). A critical look at community-based tourism. Community Development, 40(1), 39–49.
5. Botswana Tourism Development Program (BTDP). (2003). Botswana national ecotourism strategy. Gaborone.