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Ryan, J G (1976) Growth and size economies over space and time: wheat-sheep farms in New South Wales. Australian Journal of Agricultural Economics, 20 (3). pp. 160-178. ISSN 0817-8763
Wani, S P and Shinde, P A (1976) Mineralization of Nutrients During Biological Degradation of Wheat Straw. Indian Journal of Microbiology, 16 (2). pp. 61-64. ISSN 0046-8991