1. Studies on environmental radioactivity in Sri Lanka;Amarasiriwardena,1978
2. The distribution of some inorganic elements in plant tissue extracts;Bowen;J. exp. Bot.,1962
3. Electrolytes and plant cells;Briggs,1961
4. Introduction to atomic absorption spectrophotometry;Bruce,1984
5. Biological pathways and chemical behaviour of plutonium and other actinides in the environment;Dahlman,1976