. (2005). . (e124138). Strategy, 13(3), e124138
. "" .e124138 , Strategy, 13, 3, 2005, e124138.
. (2005). '', Strategy, 13(3), e124138.
, "," Strategy, 13 3 (2005): e124138,
. . Strategy. 2005;13(3):e124138 (In Persian).
