. (2003). . (e123925). Strategy, 11(1), e123925
. "" .e123925 , Strategy, 11, 1, 2003, e123925.
. (2003). '', Strategy, 11(1), e123925.
, "," Strategy, 11 1 (2003): e123925,
. . Strategy. 2003;11(1):e123925 (In Persian).
