DARMA, A. I.; ZAKARI, S. A.; SANI, A.; MAMMAN, H. S. SOIL POLLUTION AND HEAVY METAL CONTAMINATION: INSIGHT FROM EFFLUENT DISCHARGED FROM CHALLAWA INDUSTRIAL AREA, NIGERIA. FUDMA JOURNAL OF SCIENCES, v. 8, n. 6, p. 355 - 361, 16 Dec. 2024.