Umar, N. J.; Tsenfa, F. A.; Micah, E. J.; Madu , C. K.; Aji, I. T. ECOLOGICAL RISK ASSESSMENT OF HEAVY METALS IN SEDIMENT OF IBI RIVER NIGERIA AFFECTED BY VARIOUS ANTHROPOGENIC ACTIVITIES. Adv. J. Agric. Eco. 2025, 10, 44-57.