Ranatunga, A.S.Agrarian Research and Training Institute2014-07-182014-07-181979https://dl-harti.nsf.gov.lk//handle/1/2423x, 125p.MahaweliSri LankaResearch StudyAn analysis of the pre-Mahaweli situation in H4 and H5 areas in Kala-Oya basin