. (2005). . (e124068). Strategy, 12(4), e124068
. "" .e124068 , Strategy, 12, 4, 2005, e124068.
. (2005). '', Strategy, 12(4), e124068.
, "," Strategy, 12 4 (2005): e124068,
. . Strategy. 2005;12(4):e124068 (In Persian).
