Salihu, M. I., Habeeb, M. M., and Ado, S. H. 2024. “Assessment of Combined Effects of Selenium and Cadmium on Antioxidant Activity of Enzymes Produced by Citrobacter Freundii”. UMYU Journal of Microbiology Research (UJMR) 9 (3):162-72. https://doi.org/10.47430/ujmr.2493.019.