Document Type : Research Paper
Author
.
., .. (2003). . Economics Research, 3(10), 233–254.
., .. ".", Economics Research, 3, 10, 2003, 233–254.
., .. (2003). '.', Economics Research, 3(10), pp. 233–254.
., .., ".." Economics Research, 3 10 (2003): 233–254,
. .. . Economics Research. 2003;3(10):233–254 (In Persian).
