Journals
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Item Studies on rice hull ash cement(National Science Council:Colombo, 1987) Lokuliyana, D.R.K.; Ismail, M.G.M.U.; Gunawardane, R.P.Item Synthesis and crystal chemistry of some double chain silicates(1994) Gunawardane, R.P.Item Studies on chlorine and fluorine in Eppawela apatite(National Science Council:Colombo, 1987) Gunawardane, R.P.Item Studies on complete and partial acidulation of Eppawela apatite(National Science Council:Colombo, 1987) Gunawardane, R.P.Item Studies on some novel silica molecular sieves(National Science Council:Colombo, 1988) Gunawardane, R.P.Item Fertilizers from Eppawala apatite:conversion using alkali hydroxide and quartz(National Science Council:Colombo, 1987) Gunawardane, R.P.; Annersten, H.Item Studies on the production of plaster of paris from discarded moulds(National Science Council:Colombo, 1988) Lokuliyana, D.R.K.; Perera, J.A.J.; Gunawardane, R.P.