(3bVGjG GdYUQ ai GOH GHi GdYdGA GdeYQi (B/ s - (3YHOGdbGOQ RjOGfs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1986)
Keywords: (3GdGOH GdYQHis; (3GdOhdI GdYHGSjI GdKGfjIs; (3GHhGdYdGA GdeYQis; (3JGQjN hfbOs