(3eYLe GdCOHGA Gh GQTGO GdCOjH Gdi eYQaI GdCOjH (B:s (3JUfja CHj YHO Gddg jGbhJ Hf YHO Gddg GdQhej GdMehj (B/s - (3Ydj, GdbGSe s ((3HjQhJ(B-(3dHfGf (B:s (3OGQGdcJH GdYdejI ,s, 1991)
Keywords: (3GQTGO GdCOjH s; (3GdCOHGA s; (3eYQaI GdCOjH s; (3eYLe s