1. Auerbach, R. 1994. Proceedings of the Ntshongweni Technical Planning Workshop, 29 Nov.–1 Dec. 1994, Farmer Support Group, University of Natal, Pietermaritzburg.
2. Bartone, C.et al. 1994. Toward Environmental Strategies for Cities. Urban Management Programme, World Bank, Washington.
3. Blaikie, P. 1985.The Political Economy of Soil Erosion in Developing Countries. Longman, London.
4. Blaikie, P. and Brookfield, H. 1987. Approaches to the study of land degradation. In Blaikie, P. and Brookfield, H. (eds),Land Degradation and Society. Methuen, London.
5. Boersema, N. and Huggins, G. 1991. Social Impact Assessment: The ‘New’ Positivism. Paper presented at the conference of the Association for Anthropology in Southern Africa, 11–14 Sept., Johannesburg.