taha, h. a. (1964). an optimal policy for machine tool replacement. the institute of national planning.
Tohutoru Kātū Chicago (17th ed.)taha, hamdy a. An Optimal Policy for Machine Tool Replacement. cairo: the institute of national planning, 1964.
Tohutoro MLA (9th ed.)taha, hamdy a. An Optimal Policy for Machine Tool Replacement. the institute of national planning, 1964.
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