. (2002). . (e123904). Strategy, 10(2), e123904
. "" .e123904 , Strategy, 10, 2, 2002, e123904.
. (2002). '', Strategy, 10(2), e123904.
, "," Strategy, 10 2 (2002): e123904,
. . Strategy. 2002;10(2):e123904 (In Persian).
