. (2002). . (e123814). Strategy, 9(4), e123814
. "" .e123814 , Strategy, 9, 4, 2002, e123814.
. (2002). '', Strategy, 9(4), e123814.
, "," Strategy, 9 4 (2002): e123814,
. . Strategy. 2002;9(4):e123814 (In Persian).
