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Item Design, development, evaluation and adoption of a husk fired furnace for forced ventilated paddy dryers in Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1990) Dharmasiri, I.D.R.; Basnayake, B.F.A.Item Development and testing of the Chinese tube chain water wheel(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1992) Rajapaksha, C.L.; Basnayake, B.F.A.Item Identification of a manually operated water lifting device for small scale cash crop growers in the dry zone(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1992) Rajapakse, C.L.; Basnayake, B.F.A.