Josephat, O.C., Onyeke, C.C. and Chiejina, N.V. (2020) “Evaluation of some organic substrates for the growth and yield of oyster mushroom Pleurotus ostreatus (Jacq.Fr.) Kumm in southeast Nigeria”, Journal of Biological Research and Biotechnology, 18(1), pp. 1085–1093. doi:10.4314/br.v18i1.3.