. (2001). . (e123761). Strategy, 9(2), e123761
. "" .e123761 , Strategy, 9, 2, 2001, e123761.
. (2001). '', Strategy, 9(2), e123761.
, "," Strategy, 9 2 (2001): e123761,
. . Strategy. 2001;9(2):e123761 (In Persian).
