Document Type : Research Paper
Authors
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., .., ., . & ., .. (2002). . Economics Research, 2(6), 125–134.
., .., ., .., & ., .. ".", Economics Research, 2, 6, 2002, 125–134.
., .., ., .., & ., .. (2002). '.', Economics Research, 2(6), pp. 125–134.
., .., ., . & ., .., ".." Economics Research, 2 6 (2002): 125–134,
. .., . .., . .. . Economics Research. 2002;2(6):125–134 (In Persian).
