1. Heavy metals concentrations in coal and sediments from River Ekulu in Enugu, Coal City of Nigeria;Adaikpoh;Journal of Applied Sciences and Environmental Management,2005
2. Distribution of pollutants in the Odra River system part IV. Heavy metal distribution in water of the upper and middle Odra River, 1998–2000;Adamiec;Polish Journal of Environmental Studies,2002
3. Environmental impact of mining activities in the Odiel river basin (SW Spain);Aguasanta,2005
4. Heavy metals in water, sediment and some fishes of Buriganga River, Bangladesh;Ahmad;International Journal of Environmental Research,2010
5. Rivers of Turkey;Akbulut,2009