N. O. Omaka and I. F. Offor and R.C. Ehiri , Fe, Pb, Mn, and Cd Concentrations in Edible Mushrooms (Agaricus campestris) Grown in Abakaliki, Ebonyi State, Nigeria. journal = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology. February 2014, vol. 85(1). 84 - 88 [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/9997690.