eleish, g. (1962). an introduction to the input- output model. the institute of national planning.
Tohutoru Kātū Chicago (17th ed.)eleish, g. An Introduction to the Input- Output Model. cairo: the institute of national planning, 1962.
Tohutoro MLA (9th ed.)eleish, g. An Introduction to the Input- Output Model. the institute of national planning, 1962.
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