(3TQM bGfhf GdYbhHGJ GdbSe GdNGU (B/s - (3eGgQ YHO ThjTs ((3GdehUd (B:s (3eOjQjI OGQ GdcJH ddWHGYI hGdfTQ ,s, 1988)
. 349-343(3HHdjhLQGajG(B: (3UaMGJ(B.s
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Keywords: (3bGfhf GdYbhHGJ GdbSe GdNGUs