Shah, Z. et al. 2004. Comparative Study on Cultivation and Yield Performance of Oyster Mushroom (Pleurotus ostreatus) on Different Substrates (Wheat Straw, Leaves, Saw Dust). Pakistan Journal of Nutrition. 3, 3 (Apr. 2004), 158–160. DOI:https://doi.org/10.3923/pjn.2004.158.160.