Document Type : Research Paper
Authors
.
., . & ., .. (2001). . Economics Research, 1(2), 29–42.
., .., & ., .. ".", Economics Research, 1, 2, 2001, 29–42.
., .., & ., .. (2001). '.', Economics Research, 1(2), pp. 29–42.
., . & ., .., ".." Economics Research, 1 2 (2001): 29–42,
. .., . .. . Economics Research. 2001;1(2):29–42 (In Persian).
