. (2001). . (e123773). Strategy, 9(2), e123773
. "" .e123773 , Strategy, 9, 2, 2001, e123773.
. (2001). '', Strategy, 9(2), e123773.
, "," Strategy, 9 2 (2001): e123773,
. . Strategy. 2001;9(2):e123773 (In Persian).
