(3CSHGH GdefY ef eeGQSI GdELQGA GdLfGFj(B/s - (3eMehO UGdM s ((3GdbGgQI(B:s (3GdecJH Gdafj ddGUOGQGJ GdbGfhfjI(B,s, 2000)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3GdbGfhf GdLfGFis