Document Type : Research Paper
Authors
.
., .., & .., .. (2002). . Economics Research, 2(7), 13-66.
., .., & .., .. ".", Economics Research, 2, 7, 2002, 13-66.
. .., . .. (2002). '.', Economics Research, 2(7), pp. 13-66.
. . & . .., ".," Economics Research, 2 7 (2002): 13-66,
. .., . .. . Economics Research. 2002;2(7):13-66 (In Persian).
