Automated pesticide residue analysis and screening 1 Biochemical and metabolic changes in plants induced by chlorophenoxy herbicides 1 Coconut Research and Development 1 International Symposium on Coconut Research and development 1 National symposium 1 Proceedings of the symposium on ecology of animal population 1 Proceedings of the symposium on ecology of animal population from 26th oct. to 28th oct., 1978 1 Proceedings of the symposium on host as an environment from 27th march to 28th march 1930 1 Purification of solvents for pesticide residue analysis 1 Report 1 Review of the symposium on foreign materials in food 1