(3GdCQcGf GdYGeI GdShajjJjI aj CYhGe GdMQH (B/ s - (3TJjejfch, SjQZis ((3ehSch (B:s (3OGQ GdJbOe,s, 1986)
Keywords: (3JGQjN QhSjGs; (3JGQjN GdeGfjGs; (3GdMQHs