1. Anonymous (1976) acephate: pesticide residues in food. www.inchem.org/documents/jmpr/jmpmono/v076pr02.htm . Accessed 1 May 2010
2. Asensio JS, Prado APM, Medina MP, Soria MTM, Clavijo MP (1999) Behaviour of acephate and its metabolite methamidophos in apple samples. Chromatographia 49:155–160
3. Fen Z, Li J (2003) Progressing on toxicity and residual analysis of methamidophos. J Traditional Chinese Vet Med 21:40–42
4. Hoskins WM (1961) Mathematical treatment of loss of pesticide residues. Plant Prot Bull (FAO) 9:163–168
5. NABARD (2003) National Bank of Agriculture and Rural Development. www.nabard.org . Accessed 3 Apr 2010