. (2001). . (e123791). Strategy, 9(3), e123791
. "" .e123791 , Strategy, 9, 3, 2001, e123791.
. (2001). '', Strategy, 9(3), e123791.
, "," Strategy, 9 3 (2001): e123791,
. . Strategy. 2001;9(3):e123791 (In Persian).
