Authors
.
., . & ., .. (2006). . Economics Research, 6(21), 81–120.
., .., & ., .. ".", Economics Research, 6, 21, 2006, 81–120.
., .., & ., .. (2006). '.', Economics Research, 6(21), pp. 81–120.
., . & ., .., ".." Economics Research, 6 21 (2006): 81–120,
. .., . .. . Economics Research. 2006;6(21):81–120 (In Persian).
