Widanapathirana, A.S.Hector Kobbekaduwa Agrarain Research and Training Institute2014-07-182014-07-181986https://dl-harti.nsf.gov.lk//handle/1/2204iv, 111p.Irrigation DevelopmentWater ManagementSri LankaPre-rehabilitation situation of the Gal Oya scheme:analysis of socio-economic characteritics