. (2002). . (e123820). Strategy, 10(3), e123820
. "" .e123820 , Strategy, 10, 3, 2002, e123820.
. (2002). '', Strategy, 10(3), e123820.
, "," Strategy, 10 3 (2002): e123820,
. . Strategy. 2002;10(3):e123820 (In Persian).
