. (2001). . (e123776). Strategy, 9(2), e123776
. "" .e123776 , Strategy, 9, 2, 2001, e123776.
. (2001). '', Strategy, 9(2), e123776.
, "," Strategy, 9 2 (2001): e123776,
. . Strategy. 2001;9(2):e123776 (In Persian).
