. (2002). . (e123813). Strategy, 9(4), e123813
. "" .e123813 , Strategy, 9, 4, 2002, e123813.
. (2002). '', Strategy, 9(4), e123813.
, "," Strategy, 9 4 (2002): e123813,
. . Strategy. 2002;9(4):e123813 (In Persian).
