Document Type : Research Paper
Author
.
., .. (2001). . Economics Research, 1(2), 121–134.
., .. ".", Economics Research, 1, 2, 2001, 121–134.
., .. (2001). '.', Economics Research, 1(2), pp. 121–134.
., .., ".." Economics Research, 1 2 (2001): 121–134,
. .. . Economics Research. 2001;1(2):121–134 (In Persian).
