. (2003). . (e123860). Strategy, 10(4), e123860
. "" .e123860 , Strategy, 10, 4, 2003, e123860.
. (2003). '', Strategy, 10(4), e123860.
, "," Strategy, 10 4 (2003): e123860,
. . Strategy. 2003;10(4):e123860 (In Persian).
