National Water Conference on Status and Future Directions of Water Research in Sri Lanka, BMICH, Colombo, Sri Lanka, 4-6 November 1998. Session 16: Watershed management III; Session 17: Water scarcity; Session 18: Efficient irrigation
National Water Conference on Status and Future Directions of Water Research in Sri Lanka, BMICH, Colombo, Sri Lanka, 4-6 November 1998. Session 16: Watershed management III; Session 17: Water scarcity; Session 18: Efficient irrigation