(3GdJBeQ VO GdYQH(B/s - (3GfGJhdj GLGQjTjas ((3ehSch(B:s (3OGQ GdebOe(B,s, 1988)
(3GdfU HGddZI GdYQHjI eJQLe ef GdQhSjIs
Keywords: (3GdbGfhf GdOhdj GdYGes; (3GdbGfhf GdMQHjs