@article{Barde_Duhu_2020, title={Heavy Metals and Petroleum Hydrocarbon Concentration in water and Periwinkles (Tympanotonus fuscatus L.) obtained from Calabar River, Cross River State, Nigeria}, volume={5}, url={http://dx.doi.org/10.22161/ijeab.53.20}, DOI={10.22161/ijeab.53.20}, number={3}, journal={International Journal of Environment, Agriculture and Biotechnology}, publisher={AI Publications}, author={Barde, Bate Garba and Duhu, Yunana Bitrus}, year={2020}, pages={664–672} }