1. Agricultural Decision Analysis;Anderson,1977
2. Rainfed lowland rice as a research priority — an economist's view;Barker,1979
3. The chemistry and biology of flooded soils in relation to the nitrogen economy in rice fields;Bouldin;Fert. Res.,1986
4. Particle fractionation and particle-size analysis;Day,1965
5. Principles and Practices of Rice Production;DeDatta,1981