8N J Rwsell, G W Gould. Food Preservatives [ M ]. Kluwer Acadewic/Plenum Publishess 1991.
9R G Board,M C Allwood,J G Banks. Preservatives in The Food, Pharmaceutical and Environmental Industries [ M ]. Blackwell Scientific Publicatious 1987.
10Emest W Flick. Fungicides Biocides and Preservatives for Industrial and Agricultural Applications [ M ]. Noyes Pub- lications 1957.