Browsing by Author "Wijesekera, R.O.B."
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Item The chemical composition and analysis of citronella oil(NSC:Colombo, 1973) Wijesekera, R.O.B.Item Item Determinants of a national strategy for Sri Lanka for systematic cultivation of medicinal and aromatic plantsHirimburegama, K.; Jayasooriya, M.C.M.; Wijesekera, R.O.B.Item Essential oils II:infra-red spectroscopy in the analysis of the volatile oils of cinnamon(National Science Council:Colombo, 1974) Wijesekera, R.O.B.; Fonseka, H.Item Essential oils III:chemical constituents of the volatile oil from the bark of a rare variety of cinnamon(National Science Council:Colombo, 1974) Wijesekera, R.O.B.; Jayewardene, A.L.Item Essential oils IV Recent studies on the volatile Oils of cinnamon(NSC:Colombo, 1975) Wijesekera, R.O.B.; Jayewardene, A.L.; Rajapakse, L.S.; Fonseka, K.H.Item Essential Oils V :Improved technology in the field distribution of cinnamon leaf oil(NSC:Colombo, 1975) Wijesekera, R.O.B.; Ratnasingham, K.Item A policy for research in Sri Lanka(National Science Foundation:Colombo, 2006) Wijesekera, R.O.B.; Wickremasinghe, S.I.; Jayasuriya, M.C.N.Item Professor Sir Gareth Roberts FRS - A tribute (1940-2007)(National Science Foundation:Colombo, 2007-9) Wijesekera, R.O.B.Item Scientific research in a small developing nation-Sri Lanka(1976) Wijesekera, R.O.B.Item Some reflections on the theme of science & education for citizenship:an essay(National Science Foundation:Colombo, 2007-6) Wijesekera, R.O.B.Item Studies on cinnamon: improvement in the quality of cultivated cinnamonWijesekera, R.O.B.; Jayawardena, A.L.Item A study of methods of chemical estimation of the total neutral 17 - ketosteroids in urine and a description of one suitable for routine use(University of Ceylon. Colombo, 1956) Outschoorn, A.S.; Wijesekera, R.O.B.Item Synthesis of fine chemicals from Ceylon essential oilsDevanathan, M.A.V.; Wijesekera, R.O.B.