Ukpebor, J. et al. 2007. Effect of the Edible Mushroom, Pleurotus tuberregium on the Cyanide Level and Nutritional Contents of Rubber Seed Cake. Pakistan Journal of Nutrition. 6, 6 (Oct. 2007), 534–537. DOI:https://doi.org/10.3923/pjn.2007.534.537.