??? ????? ??????? ?? ??? ???? ?????? ??? ?? ? ??? ?? ??? ??? ??? ??? ????? ???. ??? ??? ??????? ??? ?? ??? ?? ? ??? ?????, ?? ??? ????? ??? ???. ????? ? ??????(DGA)? ?? ???? ‘?????’ ???? ??? ????? 3?11? DGA ?????? ?? ?? ????.

?? ????? ??? ??? ????? ‘??? ???’(1993?) ‘??? ?? ???’(1998?) ??? ????? ???? ???? ‘ET’ ‘?????’ ‘??’ ‘???? ??’ ‘??? ??’ ? ???? ?????.

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