1. El camote en el sistema alimentario del Perú: El caso del Valle de Cañete;Achata,1990
2. Adeniji, A., Ega, L., Akoroda, M., Adeniyi, A., Ugwu, B., Balogun, A., 1997. Cassava development in Nigeria. A country case study towards a global strategy for cassava development. Mimeo. Department of Agriculture, Federal Ministry of Agriculture and Natural Resources, Nigeria.
3. World Agriculture: Towards 2010. An FAO Study;Alexandratos,1995
4. China's projected cereals deficit in a world context;Alexandratos;Agricultural Economics,1996
5. China's consumption of cereals and the capacity of the rest of the world to increase exports;Alexandratos;Food Policy,1997