. (2001). . (e123789). Strategy, 9(3), e123789
. "" .e123789 , Strategy, 9, 3, 2001, e123789.
. (2001). '', Strategy, 9(3), e123789.
, "," Strategy, 9 3 (2001): e123789,
. . Strategy. 2001;9(3):e123789 (In Persian).
