. (2001). . (e123786). Strategy, 9(3), e123786
. "" .e123786 , Strategy, 9, 3, 2001, e123786.
. (2001). '', Strategy, 9(3), e123786.
, "," Strategy, 9 3 (2001): e123786,
. . Strategy. 2001;9(3):e123786 (In Persian).
