(3aj GdfXQjI GdSdhcjI (B: s (3eG GdPj jbhdg (B.(3H ScfQ MbG (B/ s - (3fGQ, QhHQJ Oi(B.s; (3GdNWjH, LeGd eMeO SYjOs ((3GdQjGV (B:s (3ecJHI GdUaMGJ GdPgHjI,s, 1991)
Keywords: (3GdJYdes; (3Yde GdfaSs