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Item Estimation of time elapsed since death using entomological methods 1(1995) Liyanage, S.; Fernando, R.; Kodagoda, N.; Samarawickrema, W.Item A survey of the expenditure on research and experimental development in Sri Lanka:1966-1975(NSC:Colombo; 76p, 1977) Liyanage, S.Item Research planning in mangrove ecosystem - multi-disciplinary research management(NARESA:Colombo, 1986) Jayewardene, R.P.; Liyanage, S.Item Managing solid wastes in Kandy city:a cost effectiveness analysis(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2001) Liyanage, S.; Wwerahewa, J.Item Fluoride analysis in aqueous solutions - a comparison of two colorimetric methods(NSF:Colombo, 2023-06) Fernando, A.; Liyanage, S.; Cooray, A.T.Item A report on the inputs into scientific research in Sri Lanka(NARESA:Colombo; 50p, 1985) Liyanage, S.; De Silva, A.; Goonathilaka, S.Item Directory of medical personnel in Sri Lanka:1977-78(NSC:Colombo; 79p, 1979) Liyanage, S.; De Silva, M.A.T.Item Managing solid wastes in Kandy city:a cost effectiveness analysis(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2001) Liyanage, S.; Weerahewa, J.Item Creating an urban place through additive transformation. a proposal to create an urban renaissance at the heart of Colombo(The Sri Lanka Institute of Architects. Colombo, 2002) Liyanage, S.