Document Type : Research Paper
Author
.
.,. . (2001). .. Economics Research, 1(1), 73-90.
.,. . ".", Economics Research, 1, 1, 2001, 73-90.
. .. (2001). '.', Economics Research, 1(1), pp. 73-90.
. ., ".," Economics Research, 1 1 (2001): 73-90,
. .. .. Economics Research. 2001;1(1):73-90 (In Persian).
