(3GdfXGe GdbGfhfj ddHJQhd aj GdeedcI GdYQHjI GdSYhOjI (B/s - (3GdCMOH, YHO GdMejOs ((3HjQhJ (B:s (3eDSSI fhad,s, 1982)
Keywords: (3GdHJQhds -- (3bhGfjf hJTQjYGJs -- (3GdSYhOjIs