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Research planning in mangrove ecosystem - multi-disciplinary research management
(NARESA:Colombo, 1986) Jayewardene, R.P.; Liyanage, S.
Managing solid wastes in Kandy city:a cost effectiveness analysis
(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2001) Liyanage, S.; Wwerahewa, J.
Managing solid wastes in Kandy city:a cost effectiveness analysis
(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2001) Liyanage, S.; Weerahewa, J.