Khan, S., Mohammed Umer, A.S. and Rehman, W. 2013. Biosorption of Lead by <I>Rhizopus stolonifer</I> Biomass:Role of Functional Groups. Journal of Ecophysiology and Occupational Health. 13, 3-4 (Dec. 2013), 21–28. DOI:https://doi.org/10.18311/jeoh/2013/1715.