. (2001). . (e123736). Strategy, 8(4), e123736
. "" .e123736 , Strategy, 8, 4, 2001, e123736.
. (2001). '', Strategy, 8(4), e123736.
, "," Strategy, 8 4 (2001): e123736,
. . Strategy. 2001;8(4):e123736 (In Persian).
