. (2001). . (e123783). Strategy, 9(3), e123783
. "" .e123783 , Strategy, 9, 3, 2001, e123783.
. (2001). '', Strategy, 9(3), e123783.
, "," Strategy, 9 3 (2001): e123783,
. . Strategy. 2001;9(3):e123783 (In Persian).
