. (2005). . (e124151). Strategy, 13(3), e124151
. "" .e124151 , Strategy, 13, 3, 2005, e124151.
. (2005). '', Strategy, 13(3), e124151.
, "," Strategy, 13 3 (2005): e124151,
. . Strategy. 2005;13(3):e124151 (In Persian).
