B. Ita, G. Ebong, J. Essien, and S. Eduok, “Bioaccumulation Potential of Heavy Metals in Edible Fungal Sporocarps from the Niger Delta Region of Nigeria”, Pak. J. Nutr., vol. 7, no. 1, pp. 93–97, Dec. 2007, doi: 10.3923/pjn.2008.93.97.