. (2002). . (e123900). Strategy, 10(2), e123900
. "" .e123900 , Strategy, 10, 2, 2002, e123900.
. (2002). '', Strategy, 10(2), e123900.
, "," Strategy, 10 2 (2002): e123900,
. . Strategy. 2002;10(2):e123900 (In Persian).
