1. IARC, “Monographs on the evaluation of the carcinogenic risk chemicals to humans” IARC: Lyon,Vol. 32 (1983).
2. IARC. “Monographs on the evaluation of the carcinogenic risk chemicals to humans” IARC: Lyon,Suppl. 7 (1987).
3. M. E. Doremire, G. E. Harmon, D. E. Pratt, J. Food Sci.44, 622 (1979).
4. O. A. Afolabi, E. A. Adesulu, O. L. Oke, J. Agric. Food Chem.31, 1083 (1983).
5. F. L. Joe, J. Salemme, T. Fazio, J. Assoc. Off. Anal. Chem.67, 1076 (1984).