2.NSF Publications
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Item An experiment with the bilingual method for teaching English as a complementary Language(NSC:Colombo, 1973) Walatara, D.Item On examinations(NSC:Colombo, 1975) Samuel, T.D.M.A.Item Standard performance range for an examination(NSC:Colombo, 1976) Samuel, T.D.M.A.Item The Institute of Chemistry, Ceylon(National Science Council:Colombo, 1982)Item Deterioration of wood and its preservation(NARESA:Colombo; 19p, 1980) De Silva, D.Item Food spoilage and food preservation in Sri Lanka(NARESA:Colombo; 36p, 1980) Pulle, M.W.Item The graphite industry in Sri Lanka(NARESA:Colombo; 95p, 1987) Wijayananda, N.P.Item Soil and soil conservation in Sri Lanka(NARESA:Colombo; 113p, 1988) Thenabadu, M.W.Item Use of fertilizers and manures in Sri Lanka(NARESA:Colombo; 42p, 1980) Thenabadu, M.W.Item Science education research planning methodology and report writing(National Science Council of Sri Lanka:Colombo; 37p, 1980)