Sule, A. M., M. B. Tijani, H. I. Atta, and M. T. Isa. “Toxicological Risk Evaluation of Polycyclic Aromatic Hydrocarbons in Soils from a Petroleum Spillage Site at Kokori in the Niger Delta Region of Nigeria”. UMYU Journal of Microbiology Research (UJMR), vol. 8, no. 2, Dec. 2023, pp. 99-109, doi:10.47430/ujmr.2382.012.