. (2002). . (e123902). Strategy, 10(2), e123902
. "" .e123902 , Strategy, 10, 2, 2002, e123902.
. (2002). '', Strategy, 10(2), e123902.
, "," Strategy, 10 2 (2002): e123902,
. . Strategy. 2002;10(2):e123902 (In Persian).
