1. Development of small-scale irrigation using limited groundwater resources: First Interim Report;Batchelor,1990
2. Improving water use effectiveness by subsurface irrigation;Batchelor;Aspects of Appl. Biol.,1994
3. Small-scale irrigation in Sri Lanka: Soil moisture status and crop response to drip irrigation;Foster,1989
4. Gravity drip irrigation (GDI) system;Gilead,1985
5. Microirrigation for a changing world: Conserving resources/preserving the environment;Lamm,1995