1. A growing problem: pesticides and the Third World poor;Bull,1982
2. Criteria for a recommended standard. Occupational exposure during the manufacture and formulation of pesticides,1978
3. Technical report series No. 356 by Expert Committee on the safe use of pesticides in public health;World Health Organization,1967
4. Medical supervision of pesticide workers: guidelines for physicians,1974
5. Cholinesterase;Whittaker,1986