Document Type : Research Paper
Authors
Tayyebi,S K and Torki,L . (2010). .. Economics Research, 10(39), 39-57.
Tayyebi,S K , and Torki,L . ".", Economics Research, 10, 39, 2010, 39-57.
Tayyebi S K, Torki L. (2010). '.', Economics Research, 10(39), pp. 39-57.
S K Tayyebi and L Torki, ".," Economics Research, 10 39 (2010): 39-57,
Tayyebi S K, Torki L. .. Economics Research. 2010;10(39):39-57 (In Persian).
