1. Community exposure to a paraquat drift;Ames;Arch. Environ. Health,1993
2. Begum, S. 1990, A Method for Analysis of Alkyl Phosphates in Urine, Chemistry Laboratory Services. Worker Health and Safety Section
3. A Growing Problem: Pesticides and the Third World Poor;Bull,1982
4. Calderón, G. R. Ramos, Y. 1992, Compilación de Datos Referente a la Industria de Plaguicidas y Su Impacto Sobre la Salud: El Salvador—1991, Ministerio de Agricultura y Ganaderı́a, San Salvador
5. CDC, 1994, EpiInfo 6, Version 6.2. Atlanta, Centers for Disease Control