Document Type : Research Paper
Author
.
., .. (2002). .. Economics Research, 2(6), 185-204.
., .. "..", Economics Research, 2, 6, 2002, 185-204.
. .. (2002). '..', Economics Research, 2(6), pp. 185-204.
. ., "..," Economics Research, 2 6 (2002): 185-204,
. .. .. Economics Research. 2002;2(6):185-204 (In Persian).
