(3GdbQGAGJ GdTGPI hJhLjgG GdfMhi (B/s - (3eMehO CMeO GdUZjQs ((3OeTb (B:s (3OGQ GdacQ,s, 1999)
. 614-603 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbQGAGJ GdTGPIs; (3GdTQjYI GdESdGejIs