risk, m. m. (1992). economic efficiency and resource productivity on small broiller farms in saudi arabi. the institute of national planning.
Chicago-viite (17. p.)risk, mohamed m. Economic Efficiency and Resource Productivity on Small Broiller Farms in Saudi Arabi. cairo: the institute of national planning, 1992.
MLA-viite (9. p.)risk, mohamed m. Economic Efficiency and Resource Productivity on Small Broiller Farms in Saudi Arabi. the institute of national planning, 1992.
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