Iram, S. et al. 2018. Utilization of Wheat (Triticum aestivum) and Berseem (Trifolium alexandrinum) Dry Biomass for Heavy Metals Biosorption: Heavy metal sorption by wheat and berseem plant biomass . Proceedings of the Pakistan Academy of Sciences: B. Life and Environmental Sciences. 55, 3 (Sep. 2018), 61–70.