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).
