. (2001). . (e123800). Strategy, 9(3), e123800
. "" .e123800 , Strategy, 9, 3, 2001, e123800.
. (2001). '', Strategy, 9(3), e123800.
, "," Strategy, 9 3 (2001): e123800,
. . Strategy. 2001;9(3):e123800 (In Persian).
