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. "The Gravity Model and Iran's Trade Flows". , 5, 5, 1380, 61-84. doi: 10.22059/ier.2001.30873
. (1380). 'The Gravity Model and Iran's Trade Flows', , 5(5), pp. 61-84. doi: 10.22059/ier.2001.30873
. The Gravity Model and Iran's Trade Flows. , 1380; 5(5): 61-84. doi: 10.22059/ier.2001.30873


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