1. ACGIH, 2003. TLVs and BEIs Based on the Documentation of the Threshold Limit Values for Chemical Substances and Physicol Agent and Biological Exposure Indices. ACGIH, world wide.
2. Toxic levels of dietary copper in Atlantic salmon (Salmo salar L.) parr;Berntssen;Aquat. Toxicol.,1999
3. Kinetics of cadmium accumulation and elimination in carp Cyprinus carpio tissues;Cinier;Comp. Biochem. Physiol.,1999
4. Dmr.go.th, 2004. http://www.dmr.go.th/news.
5. FAO, 1983. Compilation of legal limits for hazardous substances in fish and fishery products. FAO Fishery Circular No. 464, pp. 5–100.