Document Type : Research Paper
Author
.
., .. (2001). . Economics Research, 1(2), 185–200.
., .. ".", Economics Research, 1, 2, 2001, 185–200.
., .. (2001). '.', Economics Research, 1(2), pp. 185–200.
., .., ".." Economics Research, 1 2 (2001): 185–200,
. .. . Economics Research. 2001;1(2):185–200 (In Persian).
