Ukoima, H.N., et al. “Cultural Studies of Mycelia of Volvariella Volvacea, Pleurotus Tuber-Regium and Pleurotus Sajor-Caju on Different Culture Media”. Pakistan Journal of Nutrition, vol. 8, no. 7, June 2009, pp. 1052–1054, https://doi.org/10.3923/pjn.2009.1052.1054.