Document Type : Research Paper
Author
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., .. (2002). . Economics Research, 2(4), 165–200.
., .. ".", Economics Research, 2, 4, 2002, 165–200.
., .. (2002). '.', Economics Research, 2(4), pp. 165–200.
., .., ".." Economics Research, 2 4 (2002): 165–200,
. .. . Economics Research. 2002;2(4):165–200 (In Persian).