(3GdCfXeI GdSjGSjI GdeYGUQI (B:s (3GdbGfhf GdOSJhQj (B/s - (3eGgQ YHO GdgGOjs ((3GdLjRI (B:s (3eWHYI GdedjLj,s, 1977)
(3jTJed Ydi EQLGYGJ HHdjhLQGajIs
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdOSJhQjs; (3GdfXe GdSjGSjIs