(3OQGSGJ aj HYV GdbhGfjf GdefXeI ddMQjGJ (B/s - (3hMjO QCaJs ((3GdCScfOQjI (B:s (3efTCI GdeYGQa (B,s, 1978)
(3jTJed Ydj GQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdOSJhQjs