(3bjGS OhQ hSGFd GdEYdGe aj GdJfejI (B:s (3GdUMjaI (B/s - (3UdGM GdOjf, YHO GdMejO eMeO s ((3GdbGgQI (B:s (3eDSSI eGSHjO ddWHGYI ,s, 1986)
Keywords: (3GdJfejIs; (3GdOhd GdfGejIs; (3GdUMjaIs; (3hSGFd GdEYdGe s