2014-12-122014-12-121977Economic Review, 2(12):p.3-18https://dl.nsf.gov.lk/handle/1/14514IrrigationAncient irrigationJaya GangaMulti-purpose developmentTanksSocio-economic aspectsWalawe projectThe Gal oya projectMahaweli projectIrrigation and multi - purpose development in Sri LankaArticle