Umar, U.A. et al. 2025. Bioremediation of Cadmium, Lead, Zinc and Copper Contaminated Soils obtained from Dutse and Hadejia Regions by Lysinibacillus sphaericus Strain FUD-001 and Stenotrophomonas maltophilia Strain FUD-002 Immobilized on a Biochar. UMYU Scientifica. 4, 1 (Mar. 2025), 19–27. DOI:https://doi.org/10.56919/usci.2541.002.