Document Type : Research Paper
Author
.
., .. (2001). . Economics Research, 1(1), 57–72.
., .. ".", Economics Research, 1, 1, 2001, 57–72.
., .. (2001). '.', Economics Research, 1(1), pp. 57–72.
., .., ".." Economics Research, 1 1 (2001): 57–72,
. .. . Economics Research. 2001;1(1):57–72 (In Persian).
