. (2002). . (e123897). Strategy, 10(2), e123897
. "" .e123897 , Strategy, 10, 2, 2002, e123897.
. (2002). '', Strategy, 10(2), e123897.
, "," Strategy, 10 2 (2002): e123897,
. . Strategy. 2002;10(2):e123897 (In Persian).
