1. Alloway, B. J. (1995). Heavy metals in soils. London: Blackie Academic and Professional.
2. ANZECC (Australian and New Zealand Environment and Conservation Council) and ARMCANZ (Agriculture and Resource Management Council of Australia and New Zealand). (2000). Australian and New Zealand Guidelines for Fresh and Marine Water Quality, Primary Industries—Rationale and Background Information. Volume 3, Chapter 9, Paper No. 4.
3. Barcan, V. (2002). Leaching of nickel and copper from soil contaminated by metallurgical dust. Environment International, 28, 63–68.
4. Bashour, I., & Sayegh, A. (2007). Methods of analysis for soils of arid and semi-arid regions. Rome, Italy: FAO, Viale delle Terme di Caracalla 00153. 119 p.
5. Cooke, G. D., Welch, E. B., Peterson, S. A., & Newroth, P. R. (1993). Restoration and management of lakes and reservoirs (2nd ed.). Boca Raton, Florida: Lewis.