(3ebOeI ai CUhd GdOQGSI GdefgLjI ddELQGe (B/s - (3YHOGdefYe YHOGdQMje GdYhVis ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 1978)
(3GdfU HGddZI GdYQHjIs
Keywords: (3Yde GdELQGes; (3GdbGfhf GdLfGFjs