Browsing by Author "Wickramasinghe, D.N.P."
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Item Quality of fertilizers in relation to public and private sector organizations(2000) Dissanayake, D.M.A.P.; Wickramasinghe, D.N.P.; Puhambugoda, P.A.C.R.; Munasinghe, R.Item Quality of rubber fertilizers-Deviation from standards(2000) Dissanayake, D.M.A.P.; Wickramasinghe, D.N.P.; Puhambugoda, P.A.C.R.; Munasinghe, R.