1. Afzal, M. (2007). Effect of civic pollution on fish and fisheries in the riverine system. Final report of ALP sponsored Project (p. 165). Islamabad: AFP, NARC.
2. Al-Khashman, O. A., & Shawabkeh, R. A. (2006). Metals distribution in soils around the cement factory in southern Jordan. Environmental Pollution, 140(3), 387–394.
3. Amin, A., Ahmad, T., Ehsanullah, M., Irfanullah, Masroor, M., & Ayaz, M. (2010). Evaluation of industrial and city effluent quality using physicochemical and biological parameters. Electronic Journal of Environmental, Agricultural and Food Chemistry, 9(5), 931–993.
4. AOAC (Association of Official Analytical Chemistry) (2000). Official methods of analysis of the association of official analytical chemists. 14th ed. Washington DC
5. AOAC (Association of Official Analytical Chemistry) (2002). Official methods of analysis of the association of official analytical chemists. 15th ed. Washington DC