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TUDUNWADA, I.Y., ESSIET, E.U. and MOHAMMED, S.G. 2007. THE EFFECTS OF TANNERY SLUDGE ON HEAVY METALS CONCENTRATION IN CEREALS ON SMALL-HOLDER FARMS IN KANO, NIGERIA. Notulae Botanicae Horti Agrobotanici Cluj-Napoca. 35, 2 (Aug. 2007), 55-60. DOI:https://doi.org/10.15835/nbha352214.