(3GdWYhf ai GdGfJNGHGJ GdJTQjYjI ai bVGA eLdS GdOhdI GdeUQi(B.s ((3eMGce GdbVGA GdEOGQi (B- (3GdeMceI GdEOGQjI GdYdjG(B) /s - (3eGgQ LHQ fVQs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 1999)
(3efGRYGJ , GdJUhjJ , GdaQR , hEYdGf GdfJGFLs
. 383-391 (3HHdjhLQGajG(B: (3UaMGJs
(3GdfU HGddZI GdYQHjIs
Keywords: (3fXe GdGfJNGHs; (3GdbGfhf GdOSJhQis