. (2002). . (e123885). Strategy, 10(2), e123885
. "" .e123885 , Strategy, 10, 2, 2002, e123885.
. (2002). '', Strategy, 10(2), e123885.
, "," Strategy, 10 2 (2002): e123885,
. . Strategy. 2002;10(2):e123885 (In Persian).
