1. D4698-92 Standard Practice for Total Digestion of Sediment Samples for Chemical Analysis of Various Metals, Standards;ASTM,2013
2. D1971-16: Standard practices for digestion of water samples for determination of metals by flame atomic absorption;ASTM,2016
3. Spatial and temporal distribution and contamination assessment of heavy metal in Woji Creek;Dibofori- Orji;Environ. Res. Commun.,2019
4. Chronic effects of copper and zinc on the fish, Etroplus suratensis (Bloch, 1790) by continuous flow through (CFT) bioassay;Don Xavier;Mar. Environ. Res.,2019
5. Setting maximum levels for certain contaminants in foodstuffs;EC;Off. J. Eur. Union,2006