(3eY GHi GdYdGA ai SLfI (B/ s - (3Wg MSjfs ((3GdbGgQI (B: s (3OGQ GdeYGQa , s, 1989)
Keywords: (3GdGOH GdYQHis; (3GdOhdI GdYHGSjI GdKGfjIs; (3GHhGdYdGA GdeYQis; (3JGQjN hfbOs