(3ecGfI GdeQCI aj GdESdGe(B:s (3OQGSI TQYjI bGfhfjI (B/s - (3eMeO YHO GdMejO CHhRjOs ((3GdbGgQI (B:s (3eWHYI GdYTQj,s, 1979)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeQCI ai GdGSdGes; (3GdRhGL hGdWdGb aj GdESdGes