1. Anderson, S., Clark, S., Keane, B., Mogel Pliego, J., Trejo Diaz, W., 2001. Parcela-Solar: an experience in combining campesino and conventional experimentation. Final Technical Report to the Livestock Production Programme, DFID, UK.
2. Implementing the sustainable rural livelihoods approach;Carney,1998
3. Delgado, C., Rosegrant, M., Steinfeld, H., Ehui, S., Courbois, C., 1999. Livestock to 2020: the next revolution. Food, Agriculture and the Environment Discussion Paper 28. Vision 2020. International Food Policy Research Institute, Washington.
4. Dorward, A., Anderson, S., Clark, S., 2001. Asset functions and livelihood strategies: a framework for pro-poor analysis, policy and practice. European Association of Agricultural Economics. Seminar on Livelihoods and Rural Poverty, September 2001.
5. The economic valuation of farm animal genetic resources: a survey of available methods;Drucker;Ecological Economics,2001