(3GdGJLGI GdJYHjQi ai QhGjGJ fLjH eMahX (B/ s - (3GdYQHi MSf OQhjTs ([S.N] : (3ecJHI GdfgVI GdeUQjI , s, 1989)
Keywords: (3GdGOH GdYQHis; (3GdbUU GdYQHjIs; (3JGQjN hfbOs