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\bibitem{Jha_etal1990} {\textquotedblleft}\textit{Heavy metals in sediments of the Yamura River (a tributary of the Ganges), India}{\textquotedblright}. Jha PK, Subramanian V, Sitasawad R, Van Grieken R, The science of the total environment \textbf{95}, 7 (1990).   http://doi.org/10.1016/0048-9697(90)90049-Z

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