(3GdYQH hGdYQhHI ef GdbQf GdKGdK MJi GdbQf GdQGHY YTQ GdgLQj(B:s - (3OQhRI, eMeOYRI s ((3ShQjG (B:s (3OGQ GdjbXI GdYQHjI ,s, 1959)
Keywords: (3GdYGde GdYQHj (B-(3JGQjN (B-(3YUQ GdGehj s