C. O. APIE, J. A. IBIAM, C. O. OJI, and U. I. NWALI, “EVALUATION OF WATER QUALITY OF SELECTED BOREHOLES IN OSO EDDA THROUGH THE ANALYSIS OF SOME HEAVY METALS (Pb, Cd, Cr, Zn and Cu)”, TMP, vol. 7, no. 1, May 2023.