. (2005). . (e124136). Strategy, 13(3), e124136
. "" .e124136 , Strategy, 13, 3, 2005, e124136.
. (2005). '', Strategy, 13(3), e124136.
, "," Strategy, 13 3 (2005): e124136,
. . Strategy. 2005;13(3):e124136 (In Persian).
