el- imam, m. m. (1965). economic models: Analytical models and the decision making problem. the institute of national planning.
Tohutoru Kātū Chicago (17th ed.)el- imam, m. m. Economic Models: Analytical Models and the Decision Making Problem. cairo: the institute of national planning, 1965.
Tohutoro MLA (9th ed.)el- imam, m. m. Economic Models: Analytical Models and the Decision Making Problem. the institute of national planning, 1965.
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