Vidurava ( English )
Permanent URI for this collectionhttps://dl.nsf.gov.lk/handle/1/46
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Item Bee keeping and its management on coconut, rubber, cashew, citrus, gingelly, fruit, timber and other plantations(Natinal Resources, Energy Science Authority of Sri Lanka:Colombo, 1991) Wickramasinghe, R.H.Item Contemporary wars and the environment(NARESA:Colombo, 1994) Wickramasinghe, R.H.Item Cyclones storm surges and the environment(NARESA:Colombo, 1993) Wickramasinghe, R.H.Item Some possible uses of water hyacinth(Natural Recources Energy Science Authority:Colombo, 1992) Wickramasinghe, R.H.Item Use of chemicals for plant protection(Natinal Resources, Energy Science Authority of Sri Lanka:Colombo, 1991) Wickramasinghe, R.H.Item Pollution in Sri Lanka(NARESA:Colombo, 1990) Wickramasinghe, R.H.Item Global warming, physiology, health and food supplies(NARESA:Colombo, 1993) Wickramasinghe, R.H.Item Sea turtles of Sri Lankan waters(Natinal Resources, Energy Science Authority of Sri Lanka:Colombo, 1991) Wickramasinghe, R.H.