. (2002). . (e123831). Strategy, 10(3), e123831
. "" .e123831 , Strategy, 10, 3, 2002, e123831.
. (2002). '', Strategy, 10(3), e123831.
, "," Strategy, 10 3 (2002): e123831,
. . Strategy. 2002;10(3):e123831 (In Persian).
