(3GdfXe GdSjGSjI(B/s - (3KQhJ HOhis ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI(B,s, 1994)
(3jTJed Ydi EQLGYGJ HHdjhLQGajIs
(3HHdjhLQGajG(B:(3UaMGJ (B459-465s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdOSJhQjs; (3GdfXe GdSjGSjIs