. (2001). . (e123738). Strategy, 9(1), e123738
. "" .e123738 , Strategy, 9, 1, 2001, e123738.
. (2001). '', Strategy, 9(1), e123738.
, "," Strategy, 9 1 (2001): e123738,
. . Strategy. 2001;9(1):e123738 (In Persian).
