Ramasundaram, N.Nagarajah, S.Nandasiri, W.G.Peiris, H.R.J.T.2021-03-312021-03-311979Tropical Agriculturist, 135:p.99-110https://dl-doa.nsf.gov.lk/handle/1/3086ORGANOCHLORINEInsecticide residuesA survey of organochlorine insecticide residues in Sri LankaArticle