. (2001). . (e123769). Strategy, 9(2), e123769
. "" .e123769 , Strategy, 9, 2, 2001, e123769.
. (2001). '', Strategy, 9(2), e123769.
, "," Strategy, 9 2 (2001): e123769,
. . Strategy. 2001;9(2):e123769 (In Persian).
