Document Type : Research Paper
Author
.
., .. (2001). . Economics Research, 1(1), 47–56.
., .. ".", Economics Research, 1, 1, 2001, 47–56.
., .. (2001). '.', Economics Research, 1(1), pp. 47–56.
., .., ".." Economics Research, 1 1 (2001): 47–56,
. .. . Economics Research. 2001;1(1):47–56 (In Persian).
