(3GdhSjW ai bGfhf GdYbhHGJ GdbSe GdNGU (B/s - (3CMeO aJMi SQhQs ((3GdbGgQI (B:s (3OGQ GdWHGYI GdMOjKI ,s, 1991)
(3jTJed Ydi EQLGYGJ HHdjhLQGajIs
(3HHdjhLQGajG(B: (3UaMGJ (B1027-1087s
Keywords: (3bGfhf GdYbhHGJ GdbSe GdNGU s